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Subtract 12/9 from 45/25

1st number: 1 20/25, 2nd number: 1 3/9

45/25 - 12/9 is 7/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 9 is 225
  2. For the 1st fraction, since 25 × 9 = 225,
    45/25 = 45 × 9/25 × 9 = 405/225
  3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
    12/9 = 12 × 25/9 × 25 = 300/225
  4. Subtract the two fractions:
    405/225 - 300/225 = 405 - 300/225 = 105/225
  5. After reducing the fraction, the answer is 7/15

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