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Subtract 7/30 from 12/15

12/15 - 7/30 is 17/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 30 is 30
  2. For the 1st fraction, since 15 × 2 = 30,
    12/15 = 12 × 2/15 × 2 = 24/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    7/30 = 7 × 1/30 × 1 = 7/30
  4. Subtract the two fractions:
    24/30 - 7/30 = 24 - 7/30 = 17/30

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