Add 28/15 and 8/81, Solve 1 13/15 + 8/81 as a fraction

Add 28/15 and 8/81

1^st number: 1 13/15, 2^nd number: 8/81

28/15 + 8/81 is 796/405.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405

Next, find the equivalent fraction of both fractional numbers with denominator 405
For the 1st fraction, since 15 × 27 = 405,
28/15 = 28 × 27/15 × 27 = 756/405
Likewise, for the 2nd fraction, since 81 × 5 = 405,
8/81 = 8 × 5/81 × 5 = 40/405
Add the two like fractions:
756/405 + 40/405 = 756 + 40/405 = 796/405
So, 28/15 + 8/81 = 796/405
In mixed form: 1391/405

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