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Problem #93 · October 28, 2026

Common fractions

25\frac{2}{5} of a number equals 18. Find this number.
  1. A36
  2. B90
  3. C45
  4. D7157\frac{1}{5}
  5. E9

WORKED EXAMPLE

Solution

To find the number itself from its part, divide the value by this fraction: 18:25=18⋅52=4518:\frac{2}{5}=18\cdot\frac{5}{2}=45. Check: 45⋅25=1845\cdot\frac{2}{5}=18.
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