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Subtract 9/54 from 12/63

12/63 - 9/54 is 1/42.

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,
    12/63 = 12 × 6/63 × 6 = 72/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    9/54 = 9 × 7/54 × 7 = 63/378
  4. Subtract the two like fractions:
    72/378 - 63/378 = 72 - 63/378 = 9/378
  5. After reducing the fraction, the answer is 1/42

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