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

**Exercises**

**WRITE DECIMALS AND FRACTIONS**

**Convert to a decimal and a fraction.**

Question 1.

7% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

16% = **0.16**Â = **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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

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% = ____________ = ____________

Answer:

0% = **0.0**Â = **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% = ____________ = ____________

Answer:

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?

Answer:

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?

Answer:

Frederick is dividing his birthday cake among 10 friends.

Each person receives an equal 10% of the cake.

10% = 10/100 = **1/10**

Frederick use fractions to express a single slice of cake is 1/10.

1/10 =** 0.1**

Fedrick use decimals to express a single slice of cake is 0.1.