# McGraw Hill Math Grade 8 Lesson 5.1 Answer Key Dividing Fractions by Whole Numbers

Practice the questions of McGraw Hill Math Grade 8 Answer Key PDF Lesson 5.1 Dividing Fractions by Whole Numbers to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 8 Answer Key Lesson 5.1 Dividing Fractions by Whole Numbers

Exercises Divide

Question 1.
$$\frac{3}{2}$$ ÷ 4
$$\frac{3}{8}$$,

Explanation:
Multiply the denominator with the whole number,
2 x 4 = 8,
So, we get $$\frac{3}{8}$$.

Question 2.
$$\frac{6}{16}$$ ÷ 4
$$\frac{3}{32}$$,

Explanation:
Multiply the denominator with the whole number,
16 x 4 = 64,
$$\frac{6}{64}$$,
Simplify both numerator and denominator with 2,
So, we get $$\frac{3}{32}$$.

Question 3.
$$\frac{6}{27}$$ ÷ 3
$$\frac{2}{27}$$,

Explanation:
Multiply the denominator with the whole number,
27 x 3 = 81,
$$\frac{6}{81}$$,
Simplify both numerator and denominator with 3,
So, we get $$\frac{2}{7}$$.

Question 4.
$$\frac{1}{12}$$ ÷ 4
$$\frac{1}{48}$$,

Explanation:
Multiply the denominator with the whole number,
12 x 4 = 48,
So, we get $$\frac{1}{48}$$.

Question 5.
$$\frac{18}{57}$$ ÷ 2
$$\frac{3}{19}$$,

Explanation:
Multiply the denominator with the whole number,
57 x 2 = 114,
$$\frac{18}{114}$$,
Simplify both numerator and denominator with 6,
So, we get $$\frac{3}{19}$$.

Question 6.
$$\frac{14}{15}$$ ÷ 7
$$\frac{2}{15}$$,

Explanation:
Multiply the denominator with the whole number,
15 x 7 = 105,
$$\frac{14}{105}$$,
Simplify both numerator and denominator with 7,
So, we get $$\frac{2}{15}$$.

Question 7.
$$\frac{4}{9}$$ ÷ 9
$$\frac{4}{81}$$,

Explanation:
Multiply the denominator with the whole number,
9 x  = 81,
So, we get $$\frac{4}{81}$$.

Question 8.
$$\frac{12}{18}$$ ÷ 12
$$\frac{1}{18}$$,

Explanation:
Multiply the denominator with the whole number,
18 x 12 = 216,
$$\frac{12}{216}$$,
Simplify both numerator and denominator with 12,
So, we get $$\frac{1}{18}$$.

Question 9.
$$\frac{16}{22}$$ ÷ 4
$$\frac{2}{11}$$,

Explanation:
Multiply the denominator with the whole number,
22 x 4 = 88,
$$\frac{16}{88}$$,
Simplify both numerator and denominator with 2,
So, we get $$\frac{2}{11}$$.

Question 10.
$$\frac{15}{19}$$ ÷ 3
$$\frac{5}{19}$$,

Explanation:
Multiply the denominator with the whole number,
19 x 3 = 57,
$$\frac{15}{57}$$,
Simplify both numerator and denominator with 3,
So, we get $$\frac{5}{19}$$.

Question 11.
$$\frac{12}{31}$$ ÷ 6
$$\frac{1}{8}$$,

Explanation:
Multiply the denominator with the whole number,
31 x 6 = 96,
$$\frac{12}{96}$$,
Simplify both numerator and denominator with 12,
So, we get $$\frac{1}{8}$$.

Question 12.
$$\frac{55}{63}$$ ÷ 20
$$\frac{11}{252}$$,

Explanation:
Multiply the denominator with the whole number,
63 x 20 = 1260,
$$\frac{55}{1260}$$,
Simplify both numerator and denominator with 5,
So, we get $$\frac{11}{252}$$.

Question 13.
$$\frac{33}{477}$$ ÷ 11
$$\frac{1}{159}$$,

Explanation:
Multiply the denominator with the whole number,
477 x 11 = 5247,
$$\frac{33}{5247}$$,
Simplify both numerator and denominator with 33,
So, we get $$\frac{1}{159}$$.

Question 14.
$$\frac{3}{14}$$ ÷ 9
$$\frac{1}{42}$$,

Explanation:
Multiply the denominator with the whole number,
14 x 9 = 126,
$$\frac{3}{126}$$,
Simplify both numerator and denominator with 3,
So, we get $$\frac{1}{42}$$.

Question 15.
$$\frac{15}{31}$$ ÷ 5
$$\frac{3}{31}$$,

Explanation:
Multiply the denominator with the whole number,
31 x 5 = 155,
$$\frac{15}{155}$$,
Simplify both numerator and denominator with 5,
So, we get $$\frac{3}{31}$$.

Question 16.
$$\frac{16}{63}$$ ÷ 4
$$\frac{4}{63}$$,

Explanation:
Multiply the denominator with the whole number,
63 x 4 = 252,
$$\frac{16}{252}$$,
Simplify both numerator and denominator with 4,
So, we get $$\frac{4}{63}$$.

Question 17.
Julius receives $$\frac{3}{4}$$ pounds of Swiss chocolate from his grandmother and wants to divide the chocolate evenly among his 8 friends. How much chocolate will each friend receive?
$$\frac{3}{32}$$ pounds,

Explanation:
Julius receives $$\frac{3}{4}$$ pounds of Swiss chocolate from his grandmother,
She wants to divide the chocolate evenly among his 8 friends.
$$\frac{3}{4}$$ ÷ 8
Multiply the denominator with the whole number,
4 x 8 = 32,
Each friend will receive $$\frac{3}{32}$$ pounds of chocolates.

Question 18.
Paola has $$\frac{18}{25}$$ yard of yarn. She wants to cut the yarn into 3 equal pieces to make button loops. How long should she cut each piece?
$$\frac{6}{25}$$ yards,
Paola has $$\frac{18}{25}$$ yard of yarn.
$$\frac{18}{25}$$ ÷ 3,
$$\frac{18}{75}$$,
So, we get $$\frac{6}{25}$$ yards.