Add 21/2 and 56/15
1st number: 10 1/2, 2nd number: 3 11/15
21/2 + 56/15 is 427/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
21/2 = 21 × 15/2 × 15 = 315/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
56/15 = 56 × 2/15 × 2 = 112/30 - Add the two like fractions:
315/30 + 112/30 = 315 + 112/30 = 427/30 - So, 21/2 + 56/15 = 427/30
In mixed form: 147/30
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