Add 7/12 and 21/27
7/12 + 21/27 is 49/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
7/12 = 7 × 9/12 × 9 = 63/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
21/27 = 21 × 4/27 × 4 = 84/108 - Add the two like fractions:
63/108 + 84/108 = 63 + 84/108 = 147/108 - 147/108 simplified gives 49/36
- So, 7/12 + 21/27 = 49/36
In mixed form: 113/36
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