Answers

Add 2/81 and 60/80

2/81 + 60/80 is 251/324.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 81 × 80 = 6480,
   2/81 = 2 × 80/81 × 80 = 160/6480
3. Likewise, for the 2nd fraction, since 80 × 81 = 6480,
   60/80 = 60 × 81/80 × 81 = 4860/6480
4. Add the two like fractions:
   160/6480 + 4860/6480 = 160 + 4860/6480 = 5020/6480
5. 5020/6480 simplified gives 251/324
6. So, 2/81 + 60/80 = 251/324

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