What is 15 3/5% as fraction in simplest form

How do i do this activity, is appreciated

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r