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Subtract 7/40 from 8/28

8/28 - 7/40 is 31/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280
  2. For the 1st fraction, since 28 × 10 = 280,
    8/28 = 8 × 10/28 × 10 = 80/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    7/40 = 7 × 7/40 × 7 = 49/280
  4. Subtract the two fractions:
    80/280 - 49/280 = 80 - 49/280 = 31/280

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