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Subtract 42/56 from 40/28

1st number: 1 12/28, 2nd number: 42/56

40/28 - 42/56 is 19/28.

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,
    40/28 = 40 × 2/28 × 2 = 80/56
  3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
    42/56 = 42 × 1/56 × 1 = 42/56
  4. Subtract the two like fractions:
    80/56 - 42/56 = 80 - 42/56 = 38/56
  5. After reducing the fraction, the answer is 19/28

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