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Subtract 7/8 from 9/7

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

9/7 - 7/8 is 23/56.

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,
    9/7 = 9 × 8/7 × 8 = 72/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    7/8 = 7 × 7/8 × 7 = 49/56
  4. Subtract the two like fractions:
    72/56 - 49/56 = 72 - 49/56 = 23/56

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