Add 45/80 and 1/81
45/80 + 1/81 is 745/1296.
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,
45/80 = 45 × 81/80 × 81 = 3645/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
1/81 = 1 × 80/81 × 80 = 80/6480 - Add the two like fractions:
3645/6480 + 80/6480 = 3645 + 80/6480 = 3725/6480 - 3725/6480 simplified gives 745/1296
- So, 45/80 + 1/81 = 745/1296
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