Add 21/15 and 81/6
1st number: 1 6/15, 2nd number: 13 3/6
21/15 + 81/6 is 149/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
81/6 = 81 × 5/6 × 5 = 405/30 - Add the two like fractions:
42/30 + 405/30 = 42 + 405/30 = 447/30 - 447/30 simplified gives 149/10
- So, 21/15 + 81/6 = 149/10
In mixed form: 149/10
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