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Add 21/84 and 84/35

1st number: 21/84, 2nd number: 2 14/35

21/84 + 84/35 is 53/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 35 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    21/84 = 21 × 5/84 × 5 = 105/420
  3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
    84/35 = 84 × 12/35 × 12 = 1008/420
  4. Add the two like fractions:
    105/420 + 1008/420 = 105 + 1008/420 = 1113/420
  5. 1113/420 simplified gives 53/20
  6. So, 21/84 + 84/35 = 53/20
    In mixed form: 213/20

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