Add 81/3 and 21/9
1st number: 27 0/3, 2nd number: 2 3/9
81/3 + 21/9 is 88/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 9 is 9
Next, find the equivalent fraction of both fractional numbers with denominator 9 - For the 1st fraction, since 3 × 3 = 9,
81/3 = 81 × 3/3 × 3 = 243/9 - Likewise, for the 2nd fraction, since 9 × 1 = 9,
21/9 = 21 × 1/9 × 1 = 21/9 - Add the two like fractions:
243/9 + 21/9 = 243 + 21/9 = 264/9 - 264/9 simplified gives 88/3
- So, 81/3 + 21/9 = 88/3
In mixed form: 291/3
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