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Subtract 3/9 from 20/12

1st number: 1 8/12, 2nd number: 3/9

20/12 - 3/9 is 4/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 9 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 12 × 3 = 36,
    20/12 = 20 × 3/12 × 3 = 60/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    3/9 = 3 × 4/9 × 4 = 12/36
  4. Subtract the two like fractions:
    60/36 - 12/36 = 60 - 12/36 = 48/36
  5. After reducing the fraction, the answer is 4/3
  6. In mixed form: 11/3

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