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Subtract 21/63 from 35/84

35/84 - 21/63 is 1/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 63 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 84 × 3 = 252,
    35/84 = 35 × 3/84 × 3 = 105/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    21/63 = 21 × 4/63 × 4 = 84/252
  4. Subtract the two like fractions:
    105/252 - 84/252 = 105 - 84/252 = 21/252
  5. After reducing the fraction, the answer is 1/12

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