Add 84/35 and 80/21
1st number: 2 14/35, 2nd number: 3 17/21
84/35 + 80/21 is 652/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
84/35 = 84 × 3/35 × 3 = 252/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
80/21 = 80 × 5/21 × 5 = 400/105 - Add the two like fractions:
252/105 + 400/105 = 252 + 400/105 = 652/105 - So, 84/35 + 80/21 = 652/105
In mixed form: 622/105
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