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Subtract 16/12 from 15/90

1st number: 15/90, 2nd number: 1 4/12

15/90 - 16/12 is -7/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    15/90 = 15 × 2/90 × 2 = 30/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    16/12 = 16 × 15/12 × 15 = 240/180
  4. Subtract the two like fractions:
    30/180 - 240/180 = 30 - 240/180 = -210/180
  5. After reducing the fraction, the answer is -7/6

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