Add 5/81 and 70/80
5/81 + 70/80 is 607/648.
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,
5/81 = 5 × 80/81 × 80 = 400/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
70/80 = 70 × 81/80 × 81 = 5670/6480 - Add the two like fractions:
400/6480 + 5670/6480 = 400 + 5670/6480 = 6070/6480 - 6070/6480 simplified gives 607/648
- So, 5/81 + 70/80 = 607/648
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