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Subtract 18/9 from 5/12

1st number: 5/12, 2nd number: 2 0/9

5/12 - 18/9 is -19/12.

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,
    5/12 = 5 × 3/12 × 3 = 15/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    18/9 = 18 × 4/9 × 4 = 72/36
  4. Subtract the two like fractions:
    15/36 - 72/36 = 15 - 72/36 = -57/36
  5. After reducing the fraction, the answer is -19/12

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