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Subtract 15/45 from 2/18

2/18 - 15/45 is -2/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 45 is 90
  2. For the 1st fraction, since 18 × 5 = 90,
    2/18 = 2 × 5/18 × 5 = 10/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    15/45 = 15 × 2/45 × 2 = 30/90
  4. Subtract the two fractions:
    10/90 - 30/90 = 10 - 30/90 = -20/90
  5. After reducing the fraction, the answer is -2/9

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