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Subtract 9/7 from 63/20

1st number: 3 3/20, 2nd number: 1 2/7

63/20 - 9/7 is 261/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    63/20 = 63 × 7/20 × 7 = 441/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    9/7 = 9 × 20/7 × 20 = 180/140
  4. Subtract the two fractions:
    441/140 - 180/140 = 441 - 180/140 = 261/140
  5. In mixed form: 1121/140

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