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Subtract 2/54 from 5/42

5/42 - 2/54 is 31/378.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    5/42 = 5 × 9/42 × 9 = 45/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    2/54 = 2 × 7/54 × 7 = 14/378
  4. Subtract the two fractions:
    45/378 - 14/378 = 45 - 14/378 = 31/378

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