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Subtract 48/18 from 15/20

1st number: 15/20, 2nd number: 2 12/18

15/20 - 48/18 is -23/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    15/20 = 15 × 9/20 × 9 = 135/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    48/18 = 48 × 10/18 × 10 = 480/180
  4. Subtract the two fractions:
    135/180 - 480/180 = 135 - 480/180 = -345/180
  5. After reducing the fraction, the answer is -23/12

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