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Add 84/96 and 3/21

84/96 + 3/21 is 57/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 96 and 21 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 96 × 7 = 672,
    84/96 = 84 × 7/96 × 7 = 588/672
  3. Likewise, for the 2nd fraction, since 21 × 32 = 672,
    3/21 = 3 × 32/21 × 32 = 96/672
  4. Add the two like fractions:
    588/672 + 96/672 = 588 + 96/672 = 684/672
  5. 684/672 simplified gives 57/56
  6. So, 84/96 + 3/21 = 57/56
    In mixed form: 11/56

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