Add 42/84 and 20/18
1st number: 42/84, 2nd number: 1 2/18
42/84 + 20/18 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
42/84 = 42 × 3/84 × 3 = 126/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
20/18 = 20 × 14/18 × 14 = 280/252 - Add the two like fractions:
126/252 + 280/252 = 126 + 280/252 = 406/252 - 406/252 simplified gives 29/18
- So, 42/84 + 20/18 = 29/18
In mixed form: 111/18
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