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Subtract 27/15 from 4/18

1st number: 4/18, 2nd number: 1 12/15

4/18 - 27/15 is -71/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 15 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    4/18 = 4 × 5/18 × 5 = 20/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    27/15 = 27 × 6/15 × 6 = 162/90
  4. Subtract the two like fractions:
    20/90 - 162/90 = 20 - 162/90 = -142/90
  5. After reducing the fraction, the answer is -71/45

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