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Subtract 2/10 from 12/9

1st number: 1 3/9, 2nd number: 2/10

12/9 - 2/10 is 17/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 10 is 90
  2. For the 1st fraction, since 9 × 10 = 90,
    12/9 = 12 × 10/9 × 10 = 120/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    2/10 = 2 × 9/10 × 9 = 18/90
  4. Subtract the two fractions:
    120/90 - 18/90 = 120 - 18/90 = 102/90
  5. After reducing the fraction, the answer is 17/15
  6. In mixed form: 12/15

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