Add 3/18 and 20/84
3/18 + 20/84 is 17/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
3/18 = 3 × 14/18 × 14 = 42/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Add the two like fractions:
42/252 + 60/252 = 42 + 60/252 = 102/252 - 102/252 simplified gives 17/42
- So, 3/18 + 20/84 = 17/42
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