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Subtract 42/56 from 1/2

1/2 - 42/56 is -1/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 56 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 2 × 28 = 56,
    1/2 = 1 × 28/2 × 28 = 28/56
  3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
    42/56 = 42 × 1/56 × 1 = 42/56
  4. Subtract the two like fractions:
    28/56 - 42/56 = 28 - 42/56 = -14/56
  5. After reducing the fraction, the answer is -1/4

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