Add 8/36 and 2/21
8/36 + 2/21 is 20/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
8/36 = 8 × 7/36 × 7 = 56/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
2/21 = 2 × 12/21 × 12 = 24/252 - Add the two like fractions:
56/252 + 24/252 = 56 + 24/252 = 80/252 - 80/252 simplified gives 20/63
- So, 8/36 + 2/21 = 20/63
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