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Add 21/84 and 49/54

21/84 + 49/54 is 125/108.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 54 is 756

    Next, find the equivalent fraction of both fractional numbers with denominator 756
  2. For the 1st fraction, since 84 × 9 = 756,
    21/84 = 21 × 9/84 × 9 = 189/756
  3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
    49/54 = 49 × 14/54 × 14 = 686/756
  4. Add the two like fractions:
    189/756 + 686/756 = 189 + 686/756 = 875/756
  5. 875/756 simplified gives 125/108
  6. So, 21/84 + 49/54 = 125/108
    In mixed form: 117/108

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