Add 40/80 and 5/81
40/80 + 5/81 is 91/162.
Steps for adding fractions
- 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,
5/81 = 5 × 80/81 × 80 = 400/6480 - Add the two like fractions:
3240/6480 + 400/6480 = 3240 + 400/6480 = 3640/6480 - 3640/6480 simplified gives 91/162
- So, 40/80 + 5/81 = 91/162
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