Add 9/10 and 45/81
9/10 + 45/81 is 131/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
9/10 = 9 × 81/10 × 81 = 729/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
45/81 = 45 × 10/81 × 10 = 450/810 - Add the two like fractions:
729/810 + 450/810 = 729 + 450/810 = 1179/810 - 1179/810 simplified gives 131/90
- So, 9/10 + 45/81 = 131/90
In mixed form: 141/90
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