Add 18/81 and 63/90
18/81 + 63/90 is 83/90.
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,
18/81 = 18 × 10/81 × 10 = 180/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
63/90 = 63 × 9/90 × 9 = 567/810 - Add the two like fractions:
180/810 + 567/810 = 180 + 567/810 = 747/810 - 747/810 simplified gives 83/90
- So, 18/81 + 63/90 = 83/90
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