Add 10/81 and 12/80
10/81 + 12/80 is 443/1620.
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,
10/81 = 10 × 80/81 × 80 = 800/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
12/80 = 12 × 81/80 × 81 = 972/6480 - Add the two like fractions:
800/6480 + 972/6480 = 800 + 972/6480 = 1772/6480 - 1772/6480 simplified gives 443/1620
- So, 10/81 + 12/80 = 443/1620
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