Add 50/81 and 40/90
50/81 + 40/90 is 86/81.
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,
50/81 = 50 × 10/81 × 10 = 500/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
40/90 = 40 × 9/90 × 9 = 360/810 - Add the two like fractions:
500/810 + 360/810 = 500 + 360/810 = 860/810 - 860/810 simplified gives 86/81
- So, 50/81 + 40/90 = 86/81
In mixed form: 15/81
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