Add 15/2 and 21/18
1st number: 7 1/2, 2nd number: 1 3/18
15/2 + 21/18 is 26/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
15/2 = 15 × 9/2 × 9 = 135/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Add the two like fractions:
135/18 + 21/18 = 135 + 21/18 = 156/18 - 156/18 simplified gives 26/3
- So, 15/2 + 21/18 = 26/3
In mixed form: 82/3
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