Add 3/18 and 90/81, Solve 3/18 + 1 9/81 as a fraction

Add 3/18 and 90/81

1^st number: 3/18, 2^nd number: 1 9/81

3/18 + 90/81 is 23/18.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162

Next, find the equivalent fraction of both fractional numbers with denominator 162
For the 1st fraction, since 18 × 9 = 162,
3/18 = 3 × 9/18 × 9 = 27/162
Likewise, for the 2nd fraction, since 81 × 2 = 162,
90/81 = 90 × 2/81 × 2 = 180/162
Add the two like fractions:
27/162 + 180/162 = 27 + 180/162 = 207/162
207/162 simplified gives 23/18
So, 3/18 + 90/81 = 23/18
In mixed form: 15/18

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