Add 21/72 and 5/36
21/72 + 5/36 is 31/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
5/36 = 5 × 2/36 × 2 = 10/72 - Add the two like fractions:
21/72 + 10/72 = 21 + 10/72 = 31/72 - So, 21/72 + 5/36 = 31/72
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