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Subtract 21/63 from 28/14

1st number: 2 0/14, 2nd number: 21/63

28/14 - 21/63 is 5/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 63 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 14 × 9 = 126,
    28/14 = 28 × 9/14 × 9 = 252/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    21/63 = 21 × 2/63 × 2 = 42/126
  4. Subtract the two like fractions:
    252/126 - 42/126 = 252 - 42/126 = 210/126
  5. After reducing the fraction, the answer is 5/3
  6. In mixed form: 12/3

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