Add 12/15 and 70/81, Solve 12/15 + 70/81 as a fraction

Add 12/15 and 70/81

12/15 + 70/81 is 674/405.

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,
12/15 = 12 × 27/15 × 27 = 324/405
Likewise, for the 2nd fraction, since 81 × 5 = 405,
70/81 = 70 × 5/81 × 5 = 350/405
Add the two like fractions:
324/405 + 350/405 = 324 + 350/405 = 674/405
So, 12/15 + 70/81 = 674/405
In mixed form: 1269/405

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