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Subtract 10/12 from 90/28

1st number: 3 6/28, 2nd number: 10/12

90/28 - 10/12 is 50/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 12 is 84
  2. For the 1st fraction, since 28 × 3 = 84,
    90/28 = 90 × 3/28 × 3 = 270/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    10/12 = 10 × 7/12 × 7 = 70/84
  4. Subtract the two fractions:
    270/84 - 70/84 = 270 - 70/84 = 200/84
  5. After reducing the fraction, the answer is 50/21
  6. In mixed form: 28/21

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