Add 90/81 and 21/9
1st number: 1 9/81, 2nd number: 2 3/9
90/81 + 21/9 is 31/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
90/81 = 90 × 1/81 × 1 = 90/81 - Likewise, for the 2nd fraction, since 9 × 9 = 81,
21/9 = 21 × 9/9 × 9 = 189/81 - Add the two like fractions:
90/81 + 189/81 = 90 + 189/81 = 279/81 - 279/81 simplified gives 31/9
- So, 90/81 + 21/9 = 31/9
In mixed form: 34/9
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