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Subtract 5/8 from 27/90

27/90 - 5/8 is -13/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 8 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    27/90 = 27 × 4/90 × 4 = 108/360
  3. Likewise, for the 2nd fraction, since 8 × 45 = 360,
    5/8 = 5 × 45/8 × 45 = 225/360
  4. Subtract the two like fractions:
    108/360 - 225/360 = 108 - 225/360 = -117/360
  5. After reducing the fraction, the answer is -13/40

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