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Subtract 12/8 from 5/7

1st number: 5/7, 2nd number: 1 4/8

5/7 - 12/8 is -11/14.

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,
    12/8 = 12 × 7/8 × 7 = 84/56
  4. Subtract the two like fractions:
    40/56 - 84/56 = 40 - 84/56 = -44/56
  5. After reducing the fraction, the answer is -11/14

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