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Subtract 9/15 from 4/18

4/18 - 9/15 is -17/45.

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,
    9/15 = 9 × 6/15 × 6 = 54/90
  4. Subtract the two like fractions:
    20/90 - 54/90 = 20 - 54/90 = -34/90
  5. After reducing the fraction, the answer is -17/45

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