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Subtract 3/12 from 20/18

1st number: 1 2/18, 2nd number: 3/12

20/18 - 3/12 is 31/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 12 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 18 × 2 = 36,
    20/18 = 20 × 2/18 × 2 = 40/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    3/12 = 3 × 3/12 × 3 = 9/36
  4. Subtract the two like fractions:
    40/36 - 9/36 = 40 - 9/36 = 31/36

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