So on a recent test I ran into this, I wasnt sure how to work the first part because I couldnt figure out the fraction for it.

The question said to

PI((4/5(4)^5/4)-(16/3))

My first instinct is to solve the first, then subtract the second from it then multiply it by PI, however I couldnt figure out how to turn the first into a fractional answer.

Any help is appreciated.

Thanks

Rich