Add 15/20 and 84/9
1st number: 15/20, 2nd number: 9 3/9
15/20 + 84/9 is 121/12.
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,
15/20 = 15 × 9/20 × 9 = 135/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
84/9 = 84 × 20/9 × 20 = 1680/180 - Add the two like fractions:
135/180 + 1680/180 = 135 + 1680/180 = 1815/180 - 1815/180 simplified gives 121/12
- So, 15/20 + 84/9 = 121/12
In mixed form: 101/12
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