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Finding the whole from a percent worksheets Grades 6–7

Find the whole when you know a part and its percent.

The front of the free finding the whole from a percent worksheet
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Free · Worked example · 56 problems · Answer key · US Letter

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How to do it

15 is 30% of what? 15 ÷ 0.30 = 50.

30 is 25% of  120 ‾30\ \text{is }25\%\ \text{of }\underline{\,120\,}
30÷0.25=12030 \div 0.25 = 120divide the part by the percent (25% = 0.25)

Example problems

  1. 16 is 40% of ‾16\ \text{is }40\%\ \text{of }\underline{\qquad}
  2. 8 is 20% of ‾8\ \text{is }20\%\ \text{of }\underline{\qquad}
  3. 90 is 75% of ‾90\ \text{is }75\%\ \text{of }\underline{\qquad}
  4. 10 is 20% of ‾10\ \text{is }20\%\ \text{of }\underline{\qquad}

Percents, ratios and rates

  1. Converting fractions, decimals and percents
  2. Finding the percent of a number
  3. What percent is it?
  4. Finding the whole from a percent
  5. Simplifying ratios
  6. Unit rates
  7. Solving proportions
  8. Percents, ratios and proportions mixed practice