Add 49/81 and 80/90
49/81 + 80/90 is 121/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 90 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 81 × 10 = 810,
49/81 = 49 × 10/81 × 10 = 490/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
80/90 = 80 × 9/90 × 9 = 720/810 - Add the two like fractions:
490/810 + 720/810 = 490 + 720/810 = 1210/810 - 1210/810 simplified gives 121/81
- So, 49/81 + 80/90 = 121/81
In mixed form: 140/81
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Related: 98/81+80/90