Add 10/81 and 40/90
10/81 + 40/90 is 46/81.
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,
10/81 = 10 × 10/81 × 10 = 100/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
40/90 = 40 × 9/90 × 9 = 360/810 - Add the two like fractions:
100/810 + 360/810 = 100 + 360/810 = 460/810 - 460/810 simplified gives 46/81
- So, 10/81 + 40/90 = 46/81
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