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Subtract 5/21 from 35/54

35/54 - 5/21 is 155/378.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    35/54 = 35 × 7/54 × 7 = 245/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    5/21 = 5 × 18/21 × 18 = 90/378
  4. Subtract the two like fractions:
    245/378 - 90/378 = 245 - 90/378 = 155/378

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