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Subtract 35/63 from 42/21

1st number: 2 0/21, 2nd number: 35/63

42/21 - 35/63 is 13/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    42/21 = 42 × 3/21 × 3 = 126/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    35/63 = 35 × 1/63 × 1 = 35/63
  4. Subtract the two fractions:
    126/63 - 35/63 = 126 - 35/63 = 91/63
  5. After reducing the fraction, the answer is 13/9
  6. In mixed form: 14/9

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