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Subtract 18/7 from 63/56

1st number: 1 7/56, 2nd number: 2 4/7

63/56 - 18/7 is -81/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 7 is 56
  2. For the 1st fraction, since 56 × 1 = 56,
    63/56 = 63 × 1/56 × 1 = 63/56
  3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
    18/7 = 18 × 8/7 × 8 = 144/56
  4. Subtract the two fractions:
    63/56 - 144/56 = 63 - 144/56 = -81/56

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