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Add 24/21 and 84/12

1st number: 1 3/21, 2nd number: 7 0/12

24/21 + 84/12 is 57/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    24/21 = 24 × 4/21 × 4 = 96/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    84/12 = 84 × 7/12 × 7 = 588/84
  4. Add the two like fractions:
    96/84 + 588/84 = 96 + 588/84 = 684/84
  5. 684/84 simplified gives 57/7
  6. So, 24/21 + 84/12 = 57/7
    In mixed form: 81/7

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