Lesson 7-3 for exercise sets. &KDSWHU
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Write each fraction or decimal as a percent.
- 2.0.003 3. 4.0.0092 5.
Write each percent as a decimal and as a fraction in simplest form.
6.750% 7.0.25% 8.185% 9.0.004% 10.150.5%
11.Discuss and Write What percent is equal to the fraction?
What percent is equal to the fraction 5001? Explain.
3
2
1
400
8
5
4
1
You can rename decimals less than 0.01 as percents.
Rename 0.007 as a percent.
Method 1 Multiply by 100
- To multiply by 100, move the decimal
point twoplaces to the right. - Write the percent symbol.
0.007 0.007 0.7%
So 0.007 is equivalent to 0.7%.
Method 2 Rename as a Fraction
0.007 10007 100 0.7 0.7%
Method 1 Rename as a Decimal
- Divide by the denominator to write the
equivalent decimal. - Write the decimal as a percent.
2001 ^1 ^200 0.005 0.0050.5%
Rename 0.85% as a decimal.
- To divide by 100, move the decimal point
twoplaces to the left. - Remove the percent symbol.
0.85% 0.0085
So 0.85% 0.0085.
Rename 0.2% as a fraction.
- Write as a fraction with a denominator of 100.
- Rewrite as an equivalent fraction with a
whole-number numerator.
0.2%
So 0.2% 10002 5001.
1
500
2
1000
0.2 • 10
100 • 10
0.2
100
You can rename fractions less than as percents.
Rename 2001 as a percent.
1
100
You can rename percents less than 1 as decimals or fractions.
Key Concept
Percents 1%
1% 0.01,
so decimals less than 0.01 and fractions
less than 1001 are less than 1%.
1
100
Method 2 Write a Proportion
200 n 100 Cross multiply.
Divide both sides by 200.
n0.5, so 100 n 100 0.5 0.5%
100
200
200 n
200
1
200
n
100