Add 80/81 and 9/10
80/81 + 9/10 is 1529/810.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 10 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
80/81 = 80 × 10/81 × 10 = 800/810 - Likewise, for the 2nd fraction, since 10 × 81 = 810,
9/10 = 9 × 81/10 × 81 = 729/810 - Add the two like fractions:
800/810 + 729/810 = 800 + 729/810 = 1529/810 - So, 80/81 + 9/10 = 1529/810
In mixed form: 1719/810
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