# McGraw Hill Math Grade 7 Lesson 15.1 Answer Key Understanding Percent

Exercises

WRITE DECIMALS AND FRACTIONS

Convert to a decimal and a fraction.

Question 1.
7% = ____________ = ____________
7% = 0.07 = 7/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 7% in decimal form as 0.07 and fraction form as 7/100.

Question 2.
16% = ____________ = ____________
16% = 0.16Â = 16/100 or 4/25
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 16% in decimal form as 0.16 and fraction form as 16/100.

Question 3.
100% = ____________ = ____________
100% = 1.00 = 1/1
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 100% in decimal form as 1.00 and fraction form as 1/1.

Question 4.
25% = ____________ = ____________
25% = 0.25 = 25/100 or 1/4
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 25% in decimal form as 0.25 and fraction form as 1/4.

Question 5.
1% = ____________ = ____________
1% = 0.01 = 1/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 1% in decimal form as 0.01 and fraction form as 1/100.

Question 6.
20% = ____________ = ____________
20% = 0.20 = 20/100 or 1/5
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 20% in decimal form as 0.20 and fraction form as 20/100 or 1/5.

Question 7.
44% = ____________ = ____________
44% = 0.44 = 44/100 or 11/25
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 44% in decimal form as 0.44 and fraction form as 44/100.

Question 8.
99% = ____________ = ____________
99% = 0.99 = 99/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 99% in decimal form as 0.99 and fraction form as 99/100.

Question 9.
23% = ____________ = ____________
23% = 0.23 = 23/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 23% in decimal form as 0.23 and fraction form as 23/100.

Question 10.
3% = ____________ = ____________
3% = 0.03 = 3/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 3% in decimal form as 0.03 and fraction form as 3/100.

Question 11.
0% = ____________ = ____________
0% = 0.0Â = 0/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 0% in decimal form as 0.0 and fraction form as 0/100.

Question 12.
71% = ____________ = ____________
71% = 0.71 = 71/100
A percentage is displayed as decimal or a fraction with a denominator of 100. Here 71% in decimal form as 0.71 and fraction form as 71/100.

Question 13.
Out of 100 questions on an exam, Geraldine answered 89 questions correctly. What percentage of questions did Geraldine answer correctly?
In exam out of 100 questions Geraldine answered 89 questions correctly.
Geraldine answered 89% of questions correctly.

Question 14.
Frederick is dividing his birthday cake among 10 friends. If each person receives an equal 10% of the cake, how can Frederick use fractions to express a single slice of cake? How can Frederick use decimals to express a single slice of cake?