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Subtract 12/32 from 3/15

3/15 - 12/32 is -7/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 32 is 480

    Next, find the equivalent fraction of both fractional numbers with denominator 480
  2. For the 1st fraction, since 15 × 32 = 480,
    3/15 = 3 × 32/15 × 32 = 96/480
  3. Likewise, for the 2nd fraction, since 32 × 15 = 480,
    12/32 = 12 × 15/32 × 15 = 180/480
  4. Subtract the two like fractions:
    96/480 - 180/480 = 96 - 180/480 = -84/480
  5. After reducing the fraction, the answer is -7/40

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