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Add 84/21 and 7/5

1st number: 4 0/21, 2nd number: 1 2/5

84/21 + 7/5 is 27/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 5 is 105
  2. For the 1st fraction, since 21 × 5 = 105,
    84/21 = 84 × 5/21 × 5 = 420/105
  3. Likewise, for the 2nd fraction, since 5 × 21 = 105,
    7/5 = 7 × 21/5 × 21 = 147/105
  4. Add the two fractions:
    420/105 + 147/105 = 420 + 147/105 = 567/105
  5. After reducing the fraction, the answer is 27/5
  6. In mixed form: 52/5

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