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Subtract 7/84 from 90/6

1st number: 15 0/6, 2nd number: 7/84

90/6 - 7/84 is 179/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 84 is 84
  2. For the 1st fraction, since 6 × 14 = 84,
    90/6 = 90 × 14/6 × 14 = 1260/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    7/84 = 7 × 1/84 × 1 = 7/84
  4. Subtract the two fractions:
    1260/84 - 7/84 = 1260 - 7/84 = 1253/84
  5. After reducing the fraction, the answer is 179/12
  6. In mixed form: 1411/12

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