Add 20/42 and 12/36
20/42 + 12/36 is 17/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
20/42 = 20 × 6/42 × 6 = 120/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
12/36 = 12 × 7/36 × 7 = 84/252 - Add the two like fractions:
120/252 + 84/252 = 120 + 84/252 = 204/252 - 204/252 simplified gives 17/21
- So, 20/42 + 12/36 = 17/21
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