Perform the operation and simplify the answer fully.

1/3/2/5

To simplify the expression, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

Given the expression 1/3/2/5, we can rewrite it using the division symbol:

1 ÷ 3 ÷ 2 ÷ 5

Now, let's perform the operations from left to right:

1 ÷ 3 = 1/3
1/3 ÷ 2 = 1/3 × 1/2 = 1/6
1/6 ÷ 5 = 1/6 × 1/5 = 1/30

Therefore, the fully simplified answer is 1/30.