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Subtract 21/9 from 2/12

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

2/12 - 21/9 is -13/6.

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,
    2/12 = 2 × 3/12 × 3 = 6/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    21/9 = 21 × 4/9 × 4 = 84/36
  4. Subtract the two like fractions:
    6/36 - 84/36 = 6 - 84/36 = -78/36
  5. After reducing the fraction, the answer is -13/6

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