Add 20/28 and 84/9
1st number: 20/28, 2nd number: 9 3/9
20/28 + 84/9 is 211/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
20/28 = 20 × 9/28 × 9 = 180/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
84/9 = 84 × 28/9 × 28 = 2352/252 - Add the two like fractions:
180/252 + 2352/252 = 180 + 2352/252 = 2532/252 - 2532/252 simplified gives 211/21
- So, 20/28 + 84/9 = 211/21
In mixed form: 101/21
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