Add 7/21 and 18/36
7/21 + 18/36 is 5/6.
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,
7/21 = 7 × 12/21 × 12 = 84/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
18/36 = 18 × 7/36 × 7 = 126/252 - Add the two like fractions:
84/252 + 126/252 = 84 + 126/252 = 210/252 - 210/252 simplified gives 5/6
- So, 7/21 + 18/36 = 5/6
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