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Subtract 18/70 from 81/56

1st number: 1 25/56, 2nd number: 18/70

81/56 - 18/70 is 333/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 56 × 5 = 280,
    81/56 = 81 × 5/56 × 5 = 405/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    18/70 = 18 × 4/70 × 4 = 72/280
  4. Subtract the two like fractions:
    405/280 - 72/280 = 405 - 72/280 = 333/280
  5. In mixed form: 153/280

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