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Subtract 1/8 from 12/7

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

12/7 - 1/8 is 89/56.

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,
    12/7 = 12 × 8/7 × 8 = 96/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    1/8 = 1 × 7/8 × 7 = 7/56
  4. Subtract the two like fractions:
    96/56 - 7/56 = 96 - 7/56 = 89/56
  5. In mixed form: 133/56

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