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Subtract 21/8 from 49/84

1st number: 49/84, 2nd number: 2 5/8

49/84 - 21/8 is -49/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 84 × 2 = 168,
    49/84 = 49 × 2/84 × 2 = 98/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    21/8 = 21 × 21/8 × 21 = 441/168
  4. Subtract the two like fractions:
    98/168 - 441/168 = 98 - 441/168 = -343/168
  5. After reducing the fraction, the answer is -49/24

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