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Subtract 16/42 from 21/14

1st number: 1 7/14, 2nd number: 16/42

21/14 - 16/42 is 47/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 14 × 3 = 42,
    21/14 = 21 × 3/14 × 3 = 63/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    16/42 = 16 × 1/42 × 1 = 16/42
  4. Subtract the two like fractions:
    63/42 - 16/42 = 63 - 16/42 = 47/42
  5. In mixed form: 15/42

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