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Subtract 12/20 from 24/9

1st number: 2 6/9, 2nd number: 12/20

24/9 - 12/20 is 31/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 9 × 20 = 180,
    24/9 = 24 × 20/9 × 20 = 480/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    12/20 = 12 × 9/20 × 9 = 108/180
  4. Subtract the two like fractions:
    480/180 - 108/180 = 480 - 108/180 = 372/180
  5. After reducing the fraction, the answer is 31/15
  6. In mixed form: 21/15

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