McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole

All the solutions provided in McGraw Hill My Math Grade 3 Answer Key PDF Chapter 10 Lesson 2 Part of a Whole will give you a clear idea of the concepts.

McGraw-Hill My Math Grade 3 Answer Key Chapter 10 Lesson 2 Part of a Whole

Math in My World

Example 1

The background paper of Mrs. Dempsey’s bulletin board ¡s divided equally into four stripes. What fraction of the bulletin board is green?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 1
Use a model.
The bulletin board represents one whole. The whole is divided into 4 equal parts, or fourths. Use fraction tiles to model the equal parts of the bulletin board. Trace the tiles. Color one part green.
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 2
The numerator tells the number of equal parts being represented.
The denominator tells the total number of equal parts.
So, \(\frac{1}{4}\), or one- ___________, of the bulletin board is ______________.
Answer:
So, \(\frac{1}{4}\), or one- fourth, of the bulletin board is green.

Example 2

What fraction of the flag is red?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 3
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 4
Write: McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 5
Read: ___________-thirds
So, \(\frac{2}{3}\), or two- ____________ of the flag is ____________.
Explain why \(\frac{2}{3}\) is not a unit fraction.
Answer:
2/3
Read: Two-thirds
So, \(\frac{2}{3}\), or two- third of the flag is red.

Talk Math

What is the difference between the numerator and the denominator of a fraction?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 6
Answer:
A value that is placed above the horizontal line in a fraction is called a numerator. It signifies the number of parts taken out of the whole. The numeric value below the vinculum of a fraction is called the denominator. The denominator represents the total number of equal parts as a whole.

Guided Practice

Complete the chart Write a fraction for each part.
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 7
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-7

Independent Practice

Complete the chart Write a fraction for each part.
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 8
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-8

Question 6.
What fraction of the honeycomb has bees?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 9
Answer:
In the given figure 5 bees are in 8 parts of the honeycomb
So, the fraction of the honeycomb has bees is \(\frac{5}{6}\)

Question 7.
What fraction of the figure is not shaded?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 10
Answer:
In the given figure 2 parts are shaded out of 3.
So, the fraction of the figure is not shaded is \(\frac{1}{3}\)

Shade each figure to represent the fraction.

Question 8.
\(\frac{2}{4}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 11
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-11
In the given figure 2 parts are shaded out of 4.
So, the fraction is \(\frac{2}{4}\)

Question 9.
\(\frac{2}{8}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 12
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-12
In the given figure 2 parts are shaded out of 8.
So, the fraction is \(\frac{2}{8}\)

Question 10.
\(\frac{2}{2}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 13
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-13
In the given figure 2 parts are shaded.
So, the fraction is \(\frac{2}{2}\)

Match each fraction to its word name.
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 14
Answer:
The name of the fractions are matched in the below figure.
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-14

Problem Solving

Mathematical PRACTICE Use Math Tools The primary colors are red, blue, and yellow. The secondary colors are green, orange, and violet. Use the color wheel to answer Exercises 14-17.
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 15

Question 14.
What fraction of the primary and secondary colors is red?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 16
Answer:
The fraction of the primary and secondary colors is red 1/6

Question 15.
What fraction is blue or orange?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 16
Answer: The fraction is blue or orange is 2/6 or 1/3

Question 16.
What fraction is not violet?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 16
Answer: The fraction is not violet is 5/6.

Question 17.
What fraction of colors is not a primary color?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 16
Answer: The fraction of colors is not a primary color is 3/6.

HOT Problems

Question 18.
Mathematical PRACTICE Model Math Draw and shade a model to represent the fraction \(\frac{3}{4}\).
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-18
The above figure is divided into 4 equal parts.
3 parts are shaded among them.
So, the fraction of the shaded part is \(\frac{3}{4}\).

Question 19.
Building on the Essential Question Explain how to write a fraction to describe part of a whole.
Answer: A fraction is written vertically as two numbers with a line between them. The denominator represents the number of equal parts that make up the whole. The numerator describes the number of parts that you are describing.

McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 My Homework Answer Key

Practice

Complete the chart. Write a fraction for each part.

McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 17
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-17

Shade each figure to represent the fraction.

Question 3.
\(\frac{4}{6}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 18
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-18
In the given figure 4 part is shaded among 6.
So, the fraction is 4/6

Question 4.
\(\frac{3}{3}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 19
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-19
In the given figure 3 part is shaded among 3.
So, the fraction is 3/3 = 1

Question 5.
\(\frac{5}{8}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 20
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-20
In the given figure 5 part is shaded among 8.
So, the fraction is 5/8

Question 6.
\(\frac{1}{4}\)
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 21
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-21
In the given figure 1 part is shaded among 4.
So, the fraction is 1/4

Question 7.
Mathematical PRACTICE Stop and Reflect In Exercises 3-6, circle the unit fraction. Write the fraction below. Explain why it is a unit fraction.
Answer:
A unit fraction is a rational number written as a fraction where the numerator is one and the denominator is a positive integer.
In the given figures only one part is shaded so the fraction will be called as the unit fraction.

Problem Solving

Question 8.
A loaf of bread is cut into 8 equal slices. What fraction of the bread is left after 6 slices have been used for sandwiches?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 16
Answer:
Given,
A loaf of bread is cut into 8 equal slices.
The fraction of the bread is left after 6 slices have been used for sandwiches is \(\frac{6}{8}\)

Question 9.
Kristen made a pinwheel with 6 points. She colored 1 point red, 2 points blue, and 3 points purple. What fraction of the points are neither red nor purple?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 16
Answer:
Given,
Kristen made a pinwheel with 6 points. She colored 1 point red, 2 points blue, and 3 points purple.
Points are neither red nor purple = 2
So, the fraction of the points are neither red nor purple is \(\frac{2}{6}\)

Vocabulary Check

Draw a line to match the vocabulary term with its meaning.
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 22
Answer:
McGraw-Hill-My-Math-Grade-3-Chapter-10-Lesson-2-Answer-Key-Part-of-a-Whole-22

Test Practice

Question 12.
Which fraction of the figure is yellow?
McGraw Hill My Math Grade 3 Chapter 10 Lesson 2 Answer Key Part of a Whole 23
(A) \(\frac{2}{8}\)
(B) \(\frac{2}{6}\)
(C) \(\frac{1}{2}\)
(D) \(\frac{3}{6}\)
Answer:
In the above figure, 2 parts are shaded in yellow.
So, the fraction is \(\frac{2}{6}\)
Option B is correct.

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