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Subtract 50/84 from 18/54

18/54 - 50/84 is -11/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 84 is 756

    Next, find the equivalent fraction of both fractional numbers with denominator 756
  2. For the 1st fraction, since 54 × 14 = 756,
    18/54 = 18 × 14/54 × 14 = 252/756
  3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
    50/84 = 50 × 9/84 × 9 = 450/756
  4. Subtract the two like fractions:
    252/756 - 450/756 = 252 - 450/756 = -198/756
  5. After reducing the fraction, the answer is -11/42

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