Add 84/36 and 84/21
1st number: 2 12/36, 2nd number: 4 0/21
84/36 + 84/21 is 19/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
84/36 = 84 × 7/36 × 7 = 588/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
84/21 = 84 × 12/21 × 12 = 1008/252 - Add the two like fractions:
588/252 + 1008/252 = 588 + 1008/252 = 1596/252 - 1596/252 simplified gives 19/3
- So, 84/36 + 84/21 = 19/3
In mixed form: 61/3
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