# McGraw Hill Math Grade 8 Lesson 5.2 Answer Key Dividing Whole Numbers by Fractions

Practice the questions of McGraw Hill Math Grade 8 Answer Key PDF Lesson 5.2 Dividing Whole Numbers by Fractions to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 8 Answer Key Lesson 5.2 Dividing Whole Numbers by Fractions

Exercises Divide

Question 1.
5 ÷ $$\frac{1}{10}$$
Answer:
50,

Explanation:
5 ÷ $$\frac{1}{10}$$,
Multiply the whole number by the reciprocal of the fraction.
5 x $$\frac{10}{1}$$ = 50.

Question 2.
9 ÷ $$\frac{3}{5}$$
Answer:
15,

Explanation:
9 ÷ $$\frac{3}{5}$$,
Multiply the whole number by the reciprocal of the fraction.
9 x $$\frac{5}{3}$$ = $$\frac{9 X 5}{3}$$,
$$\frac{45}{3}$$ = 15.

Question 3.
14 ÷ $$\frac{7}{8}$$
Answer:
16,

Explanation:
14 ÷ $$\frac{7}{8}$$,
Multiply the whole number by the reciprocal of the fraction.
14 x $$\frac{8}{7}$$ = $$\frac{14 X 8}{7}$$,
$$\frac{112}{7}$$ = 16.

Question 4.
12 ÷ $$\frac{4}{9}$$
Answer:
27,

Explanation:
12 ÷ $$\frac{4}{9}$$,
Multiply the whole number by the reciprocal of the fraction.
12 x $$\frac{9}{4}$$ = $$\frac{12 X 9}{4}$$,
$$\frac{108}{4}$$ = 27.

Question 5.
12 ÷ $$\frac{3}{4}$$
Answer:
16,

Explanation:
12 ÷ $$\frac{3}{4}$$,
Multiply the whole number by the reciprocal of the fraction.
12 x $$\frac{4}{3}$$ = $$\frac{12 X 4}{3}$$,
$$\frac{48}{3}$$ = 16.

Question 6.
42 ÷ $$\frac{7}{9}$$
Answer:
54,

Explanation:
42 ÷ $$\frac{7}{9}$$,
Multiply the whole number by the reciprocal of the fraction.
42 x $$\frac{9}{7}$$ = $$\frac{42 X 9}{7}$$,
$$\frac{378}{7}$$ = 54.

Question 7.
45 ÷ $$\frac{5}{8}$$
Answer:
72,

Explanation:
45 ÷ $$\frac{5}{8}$$,
Multiply the whole number by the reciprocal of the fraction.
45 x $$\frac{8}{5}$$ = $$\frac{45 X 8}{5}$$,
$$\frac{360}{5}$$ = 72.

Question 8.
24 ÷ $$\frac{2}{7}$$
Answer:
84,

Explanation:
24 ÷ $$\frac{2}{7}$$,
Multiply the whole number by the reciprocal of the fraction.
24 x $$\frac{7}{2}$$ = $$\frac{24 X 7}{2}$$,
$$\frac{168}{2}$$ = 84.

Question 9.
16 ÷ $$\frac{2}{5}$$
Answer:
40,

Explanation:
16 ÷ $$\frac{2}{5}$$,
Multiply the whole number by the reciprocal of the fraction.
16 x $$\frac{5}{2}$$ = $$\frac{16 X 5}{2}$$,
$$\frac{80}{2}$$ = 40.

Question 10.
5 ÷ $$\frac{3}{8}$$
Answer:
13$$\frac{1}{3}$$,

Explanation:
5 ÷ $$\frac{3}{8}$$,
Multiply the whole number by the reciprocal of the fraction.
5 x $$\frac{8}{3}$$ = $$\frac{5 X 8}{3}$$,
$$\frac{40}{3}$$ = 13$$\frac{1}{3}$$.

Question 11.
16 ÷ $$\frac{4}{7}$$
Answer:
28,

Explanation:
16 ÷ $$\frac{4}{7}$$,
Multiply the whole number by the reciprocal of the fraction.
16 x $$\frac{7}{4}$$ = $$\frac{16 X 7}{4}$$,
$$\frac{112}{4}$$ = 28.

Question 12.
39 ÷ $$\frac{3}{11}$$
Answer:
143,

Explanation:
39 ÷ $$\frac{3}{11}$$,
Multiply the whole number by the reciprocal of the fraction.
39 x $$\frac{11}{3}$$ = $$\frac{39 X 11}{3}$$,
$$\frac{429}{3}$$ = 143.

Question 13.
15 ÷ $$\frac{3}{11}$$
Answer:
55,

Explanation:
15 ÷ $$\frac{3}{11}$$,
Multiply the whole number by the reciprocal of the fraction.
15 x $$\frac{11}{3}$$ = $$\frac{15 X 11}{3}$$,
$$\frac{165}{3}$$ = 55.

Question 14.
14 ÷ $$\frac{7}{4}$$
Answer:
8,

Explanation:
14 ÷ $$\frac{7}{4}$$,
Multiply the whole number by the reciprocal of the fraction.
14 x $$\frac{4}{7}$$ = $$\frac{14 X 4}{7}$$,
$$\frac{56}{7}$$ = 8.

Question 15.
27 ÷ $$\frac{3}{11}$$
Answer:
99,

Explanation:
27 ÷ $$\frac{3}{11}$$,
Multiply the whole number by the reciprocal of the fraction.
27 x $$\frac{11}{3}$$ = $$\frac{27 X 11}{3}$$,
$$\frac{297}{3}$$ = 99.

Question 16.
33 ÷ $$\frac{3}{8}$$
Answer:
88,

Explanation:
33 ÷ $$\frac{3}{8}$$,
Multiply the whole number by the reciprocal of the fraction.
33 x $$\frac{8}{3}$$ = $$\frac{33 X 8}{3}$$,
$$\frac{264}{2}$$ = 88.

Question 17.
Brandon worked with his community to provide aid packages for recent hurricane victims. Each package was to contain $$\frac{4}{15}$$ pounds of sugar. How many packages could Brandon fill if he had 60 pounds of sugar to distribute?
Answer:
225 packages,

Explanation:
Brandon had 60 pounds of sugar to distribute.
Each package was to contain $$\frac{4}{15}$$ pounds of sugar.
60 ÷ $$\frac{4}{15}$$,
Multiply the whole number by the reciprocal of the fraction.
60 x $$\frac{15}{4}$$ = $$\frac{60 X 15}{4}$$,
$$\frac{900}{4}$$ = 225 packages.

Question 18.
Dahlia is planning a bike trip with her friends. Her plan is to ride for $$\frac{3}{5}$$ hour and then rest for $$\frac{1}{5}$$ hour. If the entire trip will take 20 hours to complete, how many rest stops will the team make during the ride?
Answer:
25 stops,

Explanation:
Dahlia plan to ride for $$\frac{3}{5}$$ hour,
then rest for $$\frac{1}{5}$$ hour.
Number of hours of ride $$\frac{3}{5}$$ + $$\frac{1}{5}$$,
= $$\frac{4}{5}$$
If the entire trip will take 20 hours to complete,
20 ÷ $$\frac{4}{5}$$,
Multiply the whole number by the reciprocal of the fraction.
20 x $$\frac{5}{4}$$ = $$\frac{20 X 5}{4}$$,
Number of rest stops will the team make during the ride,
$$\frac{100}{4}$$ = 25 stops.