Add 3/80 and 5/81
3/80 + 5/81 is 643/6480.
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,
3/80 = 3 × 81/80 × 81 = 243/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
5/81 = 5 × 80/81 × 80 = 400/6480 - Add the two like fractions:
243/6480 + 400/6480 = 243 + 400/6480 = 643/6480 - So, 3/80 + 5/81 = 643/6480
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