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Subtract 2/15 from 12/20

12/20 - 2/15 is 7/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 15 is 60
  2. For the 1st fraction, since 20 × 3 = 60,
    12/20 = 12 × 3/20 × 3 = 36/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    2/15 = 2 × 4/15 × 4 = 8/60
  4. Subtract the two fractions:
    36/60 - 8/60 = 36 - 8/60 = 28/60
  5. After reducing the fraction, the answer is 7/15

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