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Subtract 70/56 from 18/15

1st number: 1 3/15, 2nd number: 1 14/56

18/15 - 70/56 is -1/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 56 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 15 × 56 = 840,
    18/15 = 18 × 56/15 × 56 = 1008/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    70/56 = 70 × 15/56 × 15 = 1050/840
  4. Subtract the two like fractions:
    1008/840 - 1050/840 = 1008 - 1050/840 = -42/840
  5. After reducing the fraction, the answer is -1/20

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