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Subtract 6/15 from 1/18

1/18 - 6/15 is -31/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 15 is 90
  2. For the 1st fraction, since 18 × 5 = 90,
    1/18 = 1 × 5/18 × 5 = 5/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    6/15 = 6 × 6/15 × 6 = 36/90
  4. Subtract the two fractions:
    5/90 - 36/90 = 5 - 36/90 = -31/90

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