Answer:
B
Step-by-step explanation:
7
---
10
=====
5
----
10
Invert the denominator and multiply
7 10
---- X ------
10 5
The 10s cancel. You get 7/5
7/5 = 1 2/5
That's B
I'm sorry, I don't exactly see how the diagram helps you. It seems to me it is much easier done just by doing what I did, which works every time.