Add 15/81 and 12/9, Solve 15/81 + 1 3/9 as a fraction

Add 15/81 and 12/9

1^st number: 15/81, 2^nd number: 1 3/9

15/81 + 12/9 is 41/27.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 9 is 81

Next, find the equivalent fraction of both fractional numbers with denominator 81
For the 1st fraction, since 81 × 1 = 81,
15/81 = 15 × 1/81 × 1 = 15/81
Likewise, for the 2nd fraction, since 9 × 9 = 81,
12/9 = 12 × 9/9 × 9 = 108/81
Add the two like fractions:
15/81 + 108/81 = 15 + 108/81 = 123/81
123/81 simplified gives 41/27
So, 15/81 + 12/9 = 41/27
In mixed form: 114/27

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