Add 15/18 and 35/21
1st number: 15/18, 2nd number: 1 14/21
15/18 + 35/21 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
35/21 = 35 × 6/21 × 6 = 210/126 - Add the two like fractions:
105/126 + 210/126 = 105 + 210/126 = 315/126 - 315/126 simplified gives 5/2
- So, 15/18 + 35/21 = 5/2
In mixed form: 21/2
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