Add 40/81 and 63/90
40/81 + 63/90 is 967/810.
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,
63/90 = 63 × 9/90 × 9 = 567/810 - Add the two like fractions:
400/810 + 567/810 = 400 + 567/810 = 967/810 - So, 40/81 + 63/90 = 967/810
In mixed form: 1157/810
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Related: 80/81+63/90