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Subtract 9/10 from 27/18

1st number: 1 9/18, 2nd number: 9/10

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

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 10 is 90

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

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