Grades 6-8 Fcat 2.0 Mathematics Reference Sheet Page 18
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20Supporting Idea 5: Number and Operations
Number and Operations
Objective: Identify and determine equivalent forms of proper fractions as decimals, percents, and ratios..
Key Concept: Percent (%) is a ratio that compares a number to 100
Fraction to Percent:
Percent to fraction:
EX: Change 75% to a fraction in simplest form
19
EX: Change
to a percent
25
75% means 75 out of 100
19
?
Since % means out of 100,
25
100
75
Write the percent as a fraction
19
x4
76
75
%
with a denominator of 100
100
x4
25
100
76
76
%
75
25
3
Simplify
100
100
25
4
17
2.)
Change 84% to a fraction in simplest form
1.)
Change
to a percent
20
3
4.)
Change 90% to a fraction in simplest form
3.)
Change
to a percent
4
24
6.) 78% of the class completed their homework last night.
5.) Juan answered
questions correctly on his quiz.
What fraction of the class completed their homework?
25
What percent of the questions did he get correct?
18
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