Add 4/21 and 27/36
4/21 + 27/36 is 79/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
4/21 = 4 × 12/21 × 12 = 48/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
27/36 = 27 × 7/36 × 7 = 189/252 - Add the two like fractions:
48/252 + 189/252 = 48 + 189/252 = 237/252 - 237/252 simplified gives 79/84
- So, 4/21 + 27/36 = 79/84
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