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Subtract 1/42 from 49/54

49/54 - 1/42 is 167/189.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    49/54 = 49 × 7/54 × 7 = 343/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    1/42 = 1 × 9/42 × 9 = 9/378
  4. Subtract the two like fractions:
    343/378 - 9/378 = 343 - 9/378 = 334/378
  5. After reducing the fraction, the answer is 167/189

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