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Subtract 45/15 from 9/12

1st number: 9/12, 2nd number: 3 0/15

9/12 - 45/15 is -9/4.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    9/12 = 9 × 5/12 × 5 = 45/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    45/15 = 45 × 4/15 × 4 = 180/60
  4. Subtract the two like fractions:
    45/60 - 180/60 = 45 - 180/60 = -135/60
  5. After reducing the fraction, the answer is -9/4

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