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Subtract 21/24 from 35/84

35/84 - 21/24 is -11/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 24 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 84 × 2 = 168,
    35/84 = 35 × 2/84 × 2 = 70/168
  3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
    21/24 = 21 × 7/24 × 7 = 147/168
  4. Subtract the two like fractions:
    70/168 - 147/168 = 70 - 147/168 = -77/168
  5. After reducing the fraction, the answer is -11/24

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