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Subtract 49/63 from 45/42

1st number: 1 3/42, 2nd number: 49/63

45/42 - 49/63 is 37/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 63 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    45/42 = 45 × 3/42 × 3 = 135/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    49/63 = 49 × 2/63 × 2 = 98/126
  4. Subtract the two fractions:
    135/126 - 98/126 = 135 - 98/126 = 37/126

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