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Subtract 15/18 from 2/30

2/30 - 15/18 is -23/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 18 is 90
  2. For the 1st fraction, since 30 × 3 = 90,
    2/30 = 2 × 3/30 × 3 = 6/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    15/18 = 15 × 5/18 × 5 = 75/90
  4. Subtract the two fractions:
    6/90 - 75/90 = 6 - 75/90 = -69/90
  5. After reducing the fraction, the answer is -23/30

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