Add 9/81 and 75/90
9/81 + 75/90 is 17/18.
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,
9/81 = 9 × 10/81 × 10 = 90/810 - Likewise, for the 2nd fraction, since 90 × 9 = 810,
75/90 = 75 × 9/90 × 9 = 675/810 - Add the two like fractions:
90/810 + 675/810 = 90 + 675/810 = 765/810 - 765/810 simplified gives 17/18
- So, 9/81 + 75/90 = 17/18
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