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Subtract 75/12 from 20/15

1st number: 1 5/15, 2nd number: 6 3/12

20/15 - 75/12 is -59/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    20/15 = 20 × 4/15 × 4 = 80/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    75/12 = 75 × 5/12 × 5 = 375/60
  4. Subtract the two like fractions:
    80/60 - 375/60 = 80 - 375/60 = -295/60
  5. After reducing the fraction, the answer is -59/12

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