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Subtract 45/36 from 12/15

1st number: 12/15, 2nd number: 1 9/36

12/15 - 45/36 is -9/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 36 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 15 × 12 = 180,
    12/15 = 12 × 12/15 × 12 = 144/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    45/36 = 45 × 5/36 × 5 = 225/180
  4. Subtract the two like fractions:
    144/180 - 225/180 = 144 - 225/180 = -81/180
  5. After reducing the fraction, the answer is -9/20

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