Skill: Convert simple fractions to percents

Explanation and Free Practice Resources

Percent represents a fraction with a denominator of 100, so converting a simple fraction involves finding an equivalent fraction out of 100 or converting its decimal form and multiplying by 100; for example, 14=25100=25%\frac14=\frac{25}{100}=25\%. Understanding that the whole is 100% prevents confusing a fraction’s denominator with its percent value and supports proportional reasoning; this scope focuses on common fractions with terminating decimal or convenient equivalent forms, not repeating decimals or more complex general cases.

Detailed Explanation: Convert simple fractions to percents

A percent tells how many parts there are out of 100100. To convert a fraction to a percent, make an equivalent fraction with a denominator of 100100.

Example: Convert 35\frac{3}{5} to a percent.

  1. Ask: What number times 55 equals 100100?

5×20=1005 \times 20=100
  1. Multiply the numerator by the same number:

35=3×205×20=60100\frac{3}{5}=\frac{3\times20}{5\times20}=\frac{60}{100}
  1. A fraction out of 100100 can be written as a percent:

60100=60%\frac{60}{100}=60\%

Therefore,

35=60%\boxed{\frac{3}{5}=60\%}

Remember: the denominator 100100 means the whole is divided into 100100 equal parts, so the numerator tells the percent.

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Fraction to Percents - Standard


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