Add 21/3 and 7/15
1st number: 7 0/3, 2nd number: 7/15
21/3 + 7/15 is 112/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 15 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 3 × 5 = 15,
21/3 = 21 × 5/3 × 5 = 105/15 - Likewise, for the 2nd fraction, since 15 × 1 = 15,
7/15 = 7 × 1/15 × 1 = 7/15 - Add the two like fractions:
105/15 + 7/15 = 105 + 7/15 = 112/15 - So, 21/3 + 7/15 = 112/15
In mixed form: 77/15
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