Fractions Decimals and Percents Review

• Put the number after the decimal point in the numerator.

• Put a power of ten in the denominator based on the place value of the last digit. 10, 100, 1000, etc

• Simplify

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​Convert a Decimal to a Fraction

Multiple Choice

Write the decimal as a fraction in simpliest form.

0.3

• $$\frac{3}{100}$$

• $$\frac{3}{1000}$$

• $$\frac{3}{10}$$

Multiple Choice

Write the decimal as a fraction in simpliest form.

0.5

• $$\frac{5}{100}$$

• $$\frac{5}{1000}$$

• $$\frac{5}{10}$$

• $$\frac{1}{2}$$

There are 2 Ways:

• Make an equivalent fraction over a power of 10.

  • The numerator is the number after the decimal point.

• Divide

  • The Quotient is your decimal.

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​Write Fractions and Mixed Numbers as Decimals

Multiple Choice

Write the Fraction as a Decimal.

$$\frac{1}{20}$$

• 0.5

• 0.05

• 0.005

Multiple Choice

Write the Fraction as a Decimal.

$$9\frac{3}{4}$$

• 0.75

• 9.75

• 975

• 9.075

• Percent is out of 100

• Put the number in front of percent sign as the numerator.

• The denominator is 100.

• Simplify

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​Convert Percents to Fractions

Multiple Choice

Write the Percent as a fraction in simpliest form.

14%

• $$\frac{14}{100}$$

• $$\frac{14}{1000}$$

• $$\frac{7}{500}$$

• $$\frac{7}{50}$$

Multiple Choice

Write the Percent as a fraction in simpliest form.

47%

• $$\frac{47}{100}$$

• $$\frac{47}{1000}$$

• $$\frac{47}{500}$$

• $$\frac{47}{50}$$

• Make an equivalent fraction with a denominator of 100.

  • You may need to simplify first.

• Add a percent sign to the numerator.

​Convert Fractions as Percents

Multiple Choice

Write the fraction as a percent.

$$\frac{2}{10}$$

• 2%

• 200%

• 20%

• 2000%

Multiple Choice

Write the fraction as a percent.

$$\frac{3}{4}$$

• 3%

• 4%

• 750%

• 75%

Two Methods:

1. divide by 100 and remove the % sign.

2. Move the decimal point two places to the left. (Remember decimals are small, the number becomes smaller).

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​Convert Percents to Decimals

Multiple Choice

Write percent as a decimal.

17%

• .017

• 17

• 0.17

• 1.7

Multiple Choice

Write percent as a decimal.

3%

• .3

• 0.03

• 3

• .30

Multiple Choice

Write percent as a decimal.

333%

• .3

• 0.03

• 33.3

• 3.3

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Multiple Choice

Write the decimal as a percent.

0.99

• 9%

• 9.9%

• 0.99%

• 99%

Multiple Choice

Write the decimal as a percent.

0.6

• 6%

• 600%

• 6000%

• 60%

Multiple Choice

Write the decimal as a percent.

0.612

• 612%

• 61.2%

• 601.2%

• 0.612%