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Subtract 18/56 from 28/15

1st number: 1 13/15, 2nd number: 18/56

28/15 - 18/56 is 649/420.

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,
    28/15 = 28 × 56/15 × 56 = 1568/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    18/56 = 18 × 15/56 × 15 = 270/840
  4. Subtract the two like fractions:
    1568/840 - 270/840 = 1568 - 270/840 = 1298/840
  5. After reducing the fraction, the answer is 649/420
  6. In mixed form: 1229/420

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