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Add 21/84 and 84/49

1st number: 21/84, 2nd number: 1 35/49

21/84 + 84/49 is 55/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 49 is 588
  2. For the 1st fraction, since 84 × 7 = 588,
    21/84 = 21 × 7/84 × 7 = 147/588
  3. Likewise, for the 2nd fraction, since 49 × 12 = 588,
    84/49 = 84 × 12/49 × 12 = 1008/588
  4. Add the two fractions:
    147/588 + 1008/588 = 147 + 1008/588 = 1155/588
  5. After reducing the fraction, the answer is 55/28
  6. In mixed form: 127/28

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