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Subtract 10/12 from 14/21

14/21 - 10/12 is -1/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    14/21 = 14 × 4/21 × 4 = 56/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    10/12 = 10 × 7/12 × 7 = 70/84
  4. Subtract the two like fractions:
    56/84 - 70/84 = 56 - 70/84 = -14/84
  5. After reducing the fraction, the answer is -1/6

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