Add 18/4 and 20/9
1st number: 4 2/4, 2nd number: 2 2/9
18/4 + 20/9 is 121/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
18/4 = 18 × 9/4 × 9 = 162/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
20/9 = 20 × 4/9 × 4 = 80/36 - Add the two like fractions:
162/36 + 80/36 = 162 + 80/36 = 242/36 - 242/36 simplified gives 121/18
- So, 18/4 + 20/9 = 121/18
In mixed form: 613/18
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