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Subtract 20/6 from 15/18

1st number: 15/18, 2nd number: 3 2/6

15/18 - 20/6 is -5/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 6 is 18
  2. For the 1st fraction, since 18 × 1 = 18,
    15/18 = 15 × 1/18 × 1 = 15/18
  3. Likewise, for the 2nd fraction, since 6 × 3 = 18,
    20/6 = 20 × 3/6 × 3 = 60/18
  4. Subtract the two fractions:
    15/18 - 60/18 = 15 - 60/18 = -45/18
  5. After reducing the fraction, the answer is -5/2

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