Add 90/81 and 70/30
1st number: 1 9/81, 2nd number: 2 10/30
90/81 + 70/30 is 31/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 30 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
90/81 = 90 × 10/81 × 10 = 900/810 - Likewise, for the 2nd fraction, since 30 × 27 = 810,
70/30 = 70 × 27/30 × 27 = 1890/810 - Add the two like fractions:
900/810 + 1890/810 = 900 + 1890/810 = 2790/810 - 2790/810 simplified gives 31/9
- So, 90/81 + 70/30 = 31/9
In mixed form: 34/9
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