Add 21/42 and 16/36
21/42 + 16/36 is 17/18.
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,
21/42 = 21 × 6/42 × 6 = 126/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
16/36 = 16 × 7/36 × 7 = 112/252 - Add the two like fractions:
126/252 + 112/252 = 126 + 112/252 = 238/252 - 238/252 simplified gives 17/18
- So, 21/42 + 16/36 = 17/18
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