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Subtract 6/16 from 5/42

5/42 - 6/16 is -43/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 42 × 8 = 336,
    5/42 = 5 × 8/42 × 8 = 40/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    6/16 = 6 × 21/16 × 21 = 126/336
  4. Subtract the two like fractions:
    40/336 - 126/336 = 40 - 126/336 = -86/336
  5. After reducing the fraction, the answer is -43/168

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