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Subtract 12/9 from 9/30

1st number: 9/30, 2nd number: 1 3/9

9/30 - 12/9 is -31/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 9 is 90
  2. For the 1st fraction, since 30 × 3 = 90,
    9/30 = 9 × 3/30 × 3 = 27/90
  3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
    12/9 = 12 × 10/9 × 10 = 120/90
  4. Subtract the two fractions:
    27/90 - 120/90 = 27 - 120/90 = -93/90
  5. After reducing the fraction, the answer is -31/30

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