Add 80/81 and 45/80
80/81 + 45/80 is 2009/1296.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 80 is 6480
Next, find the equivalent fraction of both fractional numbers with denominator 6480 - For the 1st fraction, since 81 × 80 = 6480,
80/81 = 80 × 80/81 × 80 = 6400/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
45/80 = 45 × 81/80 × 81 = 3645/6480 - Add the two like fractions:
6400/6480 + 3645/6480 = 6400 + 3645/6480 = 10045/6480 - 10045/6480 simplified gives 2009/1296
- So, 80/81 + 45/80 = 2009/1296
In mixed form: 1713/1296
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