Add 20/27 and 21/36
20/27 + 21/36 is 143/108.
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,
20/27 = 20 × 4/27 × 4 = 80/108 - Likewise, for the 2nd fraction, since 36 × 3 = 108,
21/36 = 21 × 3/36 × 3 = 63/108 - Add the two like fractions:
80/108 + 63/108 = 80 + 63/108 = 143/108 - So, 20/27 + 21/36 = 143/108
In mixed form: 135/108
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