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Subtract 90/56 from 42/28

1st number: 1 14/28, 2nd number: 1 34/56

42/28 - 90/56 is -3/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 56 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 28 × 2 = 56,
    42/28 = 42 × 2/28 × 2 = 84/56
  3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
    90/56 = 90 × 1/56 × 1 = 90/56
  4. Subtract the two like fractions:
    84/56 - 90/56 = 84 - 90/56 = -6/56
  5. After reducing the fraction, the answer is -3/28

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