Add 40/81 and 56/90
40/81 + 56/90 is 452/405.
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,
40/81 = 40 × 10/81 × 10 = 400/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
56/90 = 56 × 9/90 × 9 = 504/810 - Add the two like fractions:
400/810 + 504/810 = 400 + 504/810 = 904/810 - 904/810 simplified gives 452/405
- So, 40/81 + 56/90 = 452/405
In mixed form: 147/405
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Related: 80/81+56/90