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Subtract 63/35 from 27/20

1st number: 1 7/20, 2nd number: 1 28/35

27/20 - 63/35 is -9/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    27/20 = 27 × 7/20 × 7 = 189/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    63/35 = 63 × 4/35 × 4 = 252/140
  4. Subtract the two fractions:
    189/140 - 252/140 = 189 - 252/140 = -63/140
  5. After reducing the fraction, the answer is -9/20

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