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Subtract 28/96 from 1/42

1/42 - 28/96 is -15/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 96 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 42 × 16 = 672,
    1/42 = 1 × 16/42 × 16 = 16/672
  3. Likewise, for the 2nd fraction, since 96 × 7 = 672,
    28/96 = 28 × 7/96 × 7 = 196/672
  4. Subtract the two like fractions:
    16/672 - 196/672 = 16 - 196/672 = -180/672
  5. After reducing the fraction, the answer is -15/56

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