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Subtract 27/18 from 3/5

1st number: 3/5, 2nd number: 1 9/18

3/5 - 27/18 is -9/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 5 × 18 = 90,
    3/5 = 3 × 18/5 × 18 = 54/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    27/18 = 27 × 5/18 × 5 = 135/90
  4. Subtract the two like fractions:
    54/90 - 135/90 = 54 - 135/90 = -81/90
  5. After reducing the fraction, the answer is -9/10

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