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Subtract 4/63 from 21/14

1st number: 1 7/14, 2nd number: 4/63

21/14 - 4/63 is 181/126.

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,
    21/14 = 21 × 9/14 × 9 = 189/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    4/63 = 4 × 2/63 × 2 = 8/126
  4. Subtract the two like fractions:
    189/126 - 8/126 = 189 - 8/126 = 181/126
  5. In mixed form: 155/126

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