Math Worksheet - Grade 7 Page 19
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34th
7
Grade Honors
Unit: Knowledge of Number Relationships & Computation
Objective: Determine equivalent forms of rational numbers expressed as fractions, decimals, percents, and ratios.- B
Examples:
A RATIO is a comparison of two numbers by division. When a ratio compares a number to 100, it can be
written as a PERCENT. To write a ratio or fraction as a percent, find an equivalent fraction with a denominator
of 100. You can also use the meaning of percent to change percents to fractions.
19
Write
as a percent.
20
19
5
95
•
Since 100 ÷ 20 = 5, multiply the numerator and denominator by 5.
95
%
=
=
20
5
100
•
Write 92% as a fraction in simplest form.
92
4
23
÷
=
=
100
4
25
÷
Write 92% as a decimal.
Move decimal two places to the left. Add zeros if needed.
92.0% = 0.92
Write 0.4 as a percent.
Move decimal two places to the right. Add zeros if needed.
0.4 = 40%
2.) Write 19% as a decimal and fraction in simplest form.
7
1.) Write
as a percent and decimal.
25
4.) Write 75% as a decimal and fraction in simplest form.
9
3.) Write
as a percent and decimal.
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5.) Ms. Crest surveyed her class and found that 15 out of
6.) A local retail store was having a sale and offered all
30 students brushed their teeth more than twice a day.
their merchandise as a 25% discount. Write this percent
Write this ratio as a fraction in simplest form, then write it
as a fraction in simplest form, then write it as a decimal.
as a % and a decimal.
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