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Subtract 18/15 from 25/36

1st number: 25/36, 2nd number: 1 3/15

25/36 - 18/15 is -91/180.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    25/36 = 25 × 5/36 × 5 = 125/180
  3. Likewise, for the 2nd fraction, since 15 × 12 = 180,
    18/15 = 18 × 12/15 × 12 = 216/180
  4. Subtract the two like fractions:
    125/180 - 216/180 = 125 - 216/180 = -91/180

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