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Subtract 10/7 from 7/8

1st number: 7/8, 2nd number: 1 3/7

7/8 - 10/7 is -31/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 7 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 8 × 7 = 56,
    7/8 = 7 × 7/8 × 7 = 49/56
  3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
    10/7 = 10 × 8/7 × 8 = 80/56
  4. Subtract the two like fractions:
    49/56 - 80/56 = 49 - 80/56 = -31/56

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