Add 7/81 and 6/90
7/81 + 6/90 is 62/405.
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,
7/81 = 7 × 10/81 × 10 = 70/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
6/90 = 6 × 9/90 × 9 = 54/810 - Add the two like fractions:
70/810 + 54/810 = 70 + 54/810 = 124/810 - 124/810 simplified gives 62/405
- So, 7/81 + 6/90 = 62/405
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