It’s 2/3
Step-by-step explanation:
2/5 can be converted into 6/15 by multiplying both the numerator and denominator by 3
2 x 3 = 6
5 x 3 = 15
Then we add the numerators since the denominators match:
4 + 6 = 10
Which gives us 10/15
We later on divide by a prime number that can go into 10/15 equally
10/15 divided by 5 is 2/3