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Subtract 90/16 from 12/15

1st number: 12/15, 2nd number: 5 10/16

12/15 - 90/16 is -193/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 16 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 15 × 16 = 240,
    12/15 = 12 × 16/15 × 16 = 192/240
  3. Likewise, for the 2nd fraction, since 16 × 15 = 240,
    90/16 = 90 × 15/16 × 15 = 1350/240
  4. Subtract the two like fractions:
    192/240 - 1350/240 = 192 - 1350/240 = -1158/240
  5. After reducing the fraction, the answer is -193/40

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