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Subtract 12/8 from 3/15

1st number: 3/15, 2nd number: 1 4/8

3/15 - 12/8 is -13/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 8 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    3/15 = 3 × 8/15 × 8 = 24/120
  3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
    12/8 = 12 × 15/8 × 15 = 180/120
  4. Subtract the two like fractions:
    24/120 - 180/120 = 24 - 180/120 = -156/120
  5. After reducing the fraction, the answer is -13/10

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