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Subtract 1/54 from 42/63

42/63 - 1/54 is 35/54.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 63 × 6 = 378,
    42/63 = 42 × 6/63 × 6 = 252/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    1/54 = 1 × 7/54 × 7 = 7/378
  4. Subtract the two like fractions:
    252/378 - 7/378 = 252 - 7/378 = 245/378
  5. After reducing the fraction, the answer is 35/54

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