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Subtract 12/90 from 28/24

1st number: 1 4/24, 2nd number: 12/90

28/24 - 12/90 is 31/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 24 × 15 = 360,
    28/24 = 28 × 15/24 × 15 = 420/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    12/90 = 12 × 4/90 × 4 = 48/360
  4. Subtract the two like fractions:
    420/360 - 48/360 = 420 - 48/360 = 372/360
  5. After reducing the fraction, the answer is 31/30
  6. In mixed form: 11/30

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