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Subtract 7/32 from 1/42

1/42 - 7/32 is -131/672.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 32 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 32 × 21 = 672,
    7/32 = 7 × 21/32 × 21 = 147/672
  4. Subtract the two like fractions:
    16/672 - 147/672 = 16 - 147/672 = -131/672

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