Add 72/81 and 27/70, Solve 72/81 + 27/70 as a fraction

Add 72/81 and 27/70

72/81 + 27/70 is 803/630.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670

Next, find the equivalent fraction of both fractional numbers with denominator 5670
For the 1st fraction, since 81 × 70 = 5670,
72/81 = 72 × 70/81 × 70 = 5040/5670
Likewise, for the 2nd fraction, since 70 × 81 = 5670,
27/70 = 27 × 81/70 × 81 = 2187/5670
Add the two like fractions:
5040/5670 + 2187/5670 = 5040 + 2187/5670 = 7227/5670
7227/5670 simplified gives 803/630
So, 72/81 + 27/70 = 803/630
In mixed form: 1173/630

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