Add 40/80 and 35/81, Solve 40/80 + 35/81 as a fraction

Add 40/80 and 35/81

40/80 + 35/81 is 151/162.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 81 is 6480

Next, find the equivalent fraction of both fractional numbers with denominator 6480
For the 1st fraction, since 80 × 81 = 6480,
40/80 = 40 × 81/80 × 81 = 3240/6480
Likewise, for the 2nd fraction, since 81 × 80 = 6480,
35/81 = 35 × 80/81 × 80 = 2800/6480
Add the two like fractions:
3240/6480 + 2800/6480 = 3240 + 2800/6480 = 6040/6480
6040/6480 simplified gives 151/162
So, 40/80 + 35/81 = 151/162

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