Add 84/12 and 21/36
1st number: 7 0/12, 2nd number: 21/36
84/12 + 21/36 is 91/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
84/12 = 84 × 3/12 × 3 = 252/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Add the two like fractions:
252/36 + 21/36 = 252 + 21/36 = 273/36 - 273/36 simplified gives 91/12
- So, 84/12 + 21/36 = 91/12
In mixed form: 77/12
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