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Subtract 84/7 from 9/8

1st number: 1 1/8, 2nd number: 12 0/7

9/8 - 84/7 is -87/8.

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,
    9/8 = 9 × 7/8 × 7 = 63/56
  3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
    84/7 = 84 × 8/7 × 8 = 672/56
  4. Subtract the two like fractions:
    63/56 - 672/56 = 63 - 672/56 = -609/56
  5. After reducing the fraction, the answer is -87/8

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