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Subtract 56/63 from 90/21

1st number: 4 6/21, 2nd number: 56/63

90/21 - 56/63 is 214/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    90/21 = 90 × 3/21 × 3 = 270/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    56/63 = 56 × 1/63 × 1 = 56/63
  4. Subtract the two like fractions:
    270/63 - 56/63 = 270 - 56/63 = 214/63
  5. In mixed form: 325/63

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