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Subtract 81/8 from 5/7

1st number: 5/7, 2nd number: 10 1/8

5/7 - 81/8 is -527/56.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 7 × 8 = 56,
    5/7 = 5 × 8/7 × 8 = 40/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    81/8 = 81 × 7/8 × 7 = 567/56
  4. Subtract the two like fractions:
    40/56 - 567/56 = 40 - 567/56 = -527/56

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