Question

(3^(-1)+4^(-1))/5^(-1)

Answer 1

This is based on (a)^-1 = 1/a.

Answer 2

Solution - ( 1 upon 3) + (1 upon 4) + (1 upon 5)

Take LCM - 60

Then (20 upon 60) + (15 upon 60) + (12 upon 60)

Now add these

Answer is 47 upon 60 or 47/60

Hope this answer is useful to you

Thanks

Kaushal Yadav