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Subtract 90/12 from 6/15

1st number: 6/15, 2nd number: 7 6/12

6/15 - 90/12 is -71/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 12 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    6/15 = 6 × 4/15 × 4 = 24/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    90/12 = 90 × 5/12 × 5 = 450/60
  4. Subtract the two fractions:
    24/60 - 450/60 = 24 - 450/60 = -426/60
  5. After reducing the fraction, the answer is -71/10

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