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Subtract 50/54 from 36/42

36/42 - 50/54 is -13/189.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 42 × 9 = 378,
    36/42 = 36 × 9/42 × 9 = 324/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    50/54 = 50 × 7/54 × 7 = 350/378
  4. Subtract the two like fractions:
    324/378 - 350/378 = 324 - 350/378 = -26/378
  5. After reducing the fraction, the answer is -13/189

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