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Subtract 45/84 from 42/56

42/56 - 45/84 is 3/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 84 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    42/56 = 42 × 3/56 × 3 = 126/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    45/84 = 45 × 2/84 × 2 = 90/168
  4. Subtract the two like fractions:
    126/168 - 90/168 = 126 - 90/168 = 36/168
  5. After reducing the fraction, the answer is 3/14

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