Add 12/14 and 21/36
12/14 + 21/36 is 121/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 14 × 18 = 252,
12/14 = 12 × 18/14 × 18 = 216/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Add the two like fractions:
216/252 + 147/252 = 216 + 147/252 = 363/252 - 363/252 simplified gives 121/84
- So, 12/14 + 21/36 = 121/84
In mixed form: 137/84
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