Add 90/10 and 90/81
1st number: 9 0/10, 2nd number: 1 9/81
90/10 + 90/81 is 91/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
90/10 = 90 × 81/10 × 81 = 7290/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
90/81 = 90 × 10/81 × 10 = 900/810 - Add the two like fractions:
7290/810 + 900/810 = 7290 + 900/810 = 8190/810 - 8190/810 simplified gives 91/9
- So, 90/10 + 90/81 = 91/9
In mixed form: 101/9
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