30 is 40% of 75

30 is 40% of 75. Divide 30 by 75 and multiply by 100: 30 ÷ 75 = 0.4, and 0.4 × 100 = 40%.

30 is 40% of 75

How to work out what percent 30 is of 75

Percent = (X ÷ Y) × 100

  1. Write it as a fraction: 30/75 (simplifies to 2/5).
  2. Divide: 30 ÷ 75 = 0.4.
  3. Multiply by 100: 0.4 × 100 = 40%.

Check: 40% of 75 = 40 × 75 ÷ 100 = 30.

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