Add 21/27 and 27/36
21/27 + 27/36 is 55/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 36 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
21/27 = 21 × 4/27 × 4 = 84/108 - Likewise, for the 2nd fraction, since 36 × 3 = 108,
27/36 = 27 × 3/36 × 3 = 81/108 - Add the two like fractions:
84/108 + 81/108 = 84 + 81/108 = 165/108 - 165/108 simplified gives 55/36
- So, 21/27 + 27/36 = 55/36
In mixed form: 119/36
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