First, we can simplify the expression 64e^2/5e by dividing the numerator by the denominator. Since e is a common factor, we can cancel it out:
64e^2/5e = 64e^(2-1)/5 = 64e/5
Similarly, we can simplify the expression 3e/8e by dividing the numerator by the denominator and canceling out e:
3e/8e = 3/8
Now we can multiply the two simplified expressions to get the final answer:
(64e/5) * (3/8) = (64*3*e)/(5*8) = 24.96e
Therefore, the simplified expression is 24.96e.