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Subtract 3/40 from 7/28

7/28 - 3/40 is 7/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 28 × 10 = 280,
    7/28 = 7 × 10/28 × 10 = 70/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    3/40 = 3 × 7/40 × 7 = 21/280
  4. Subtract the two like fractions:
    70/280 - 21/280 = 70 - 21/280 = 49/280
  5. After reducing the fraction, the answer is 7/40

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