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Subtract 24/20 from 27/90

1st number: 27/90, 2nd number: 1 4/20

27/90 - 24/20 is -9/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 20 is 180
  2. For the 1st fraction, since 90 × 2 = 180,
    27/90 = 27 × 2/90 × 2 = 54/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    24/20 = 24 × 9/20 × 9 = 216/180
  4. Subtract the two fractions:
    54/180 - 216/180 = 54 - 216/180 = -162/180
  5. After reducing the fraction, the answer is -9/10

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