What is the quotient of the sum of two thirds and three fifths divided by the difference between 10 and one half

What is the quotient of the sum of two thirds and three fifths divided by the difference between 10 and one half

Hello:
This is a formula calculation, which does not need the solution of the equation
(2/3 +3/5)÷(10-1/2)
=19 / 15 △ 9 and 1 / 2
=2 / 15 (2 / 15)