Add 7/15 and 81/10
1st number: 7/15, 2nd number: 8 1/10
7/15 + 81/10 is 257/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 10 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
7/15 = 7 × 2/15 × 2 = 14/30 - Likewise, for the 2nd fraction, since 10 × 3 = 30,
81/10 = 81 × 3/10 × 3 = 243/30 - Add the two like fractions:
14/30 + 243/30 = 14 + 243/30 = 257/30 - So, 7/15 + 81/10 = 257/30
In mixed form: 817/30
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