Add 42/20 and 84/9
1st number: 2 2/20, 2nd number: 9 3/9
42/20 + 84/9 is 343/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
84/9 = 84 × 20/9 × 20 = 1680/180 - Add the two like fractions:
378/180 + 1680/180 = 378 + 1680/180 = 2058/180 - 2058/180 simplified gives 343/30
- So, 42/20 + 84/9 = 343/30
In mixed form: 1113/30
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