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Subtract 28/90 from 5/12

5/12 - 28/90 is 19/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    5/12 = 5 × 15/12 × 15 = 75/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    28/90 = 28 × 2/90 × 2 = 56/180
  4. Subtract the two like fractions:
    75/180 - 56/180 = 75 - 56/180 = 19/180

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