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Subtract 24/20 from 3/9

1st number: 3/9, 2nd number: 1 4/20

3/9 - 24/20 is -13/15.

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,
    3/9 = 3 × 20/9 × 20 = 60/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    24/20 = 24 × 9/20 × 9 = 216/180
  4. Subtract the two like fractions:
    60/180 - 216/180 = 60 - 216/180 = -156/180
  5. After reducing the fraction, the answer is -13/15

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