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Subtract 21/54 from 5/14

5/14 - 21/54 is -2/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 14 × 27 = 378,
    5/14 = 5 × 27/14 × 27 = 135/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    21/54 = 21 × 7/54 × 7 = 147/378
  4. Subtract the two like fractions:
    135/378 - 147/378 = 135 - 147/378 = -12/378
  5. After reducing the fraction, the answer is -2/63

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