Question 722106
Simplify what is inside the parentheses first.

4/10 = 2/5

2/5 * 1/3 = 2 /15

2/5 - 2/15 

We have to find the least common multiple of 5 and 15, and it is 15.

So 2/5 = ?/15

? = 6.

So, we get 6/15 - 2/15 = 4/15

And, 4/15 is your answer