Answer:
The question
after change the mixed number to improper & using KCF will become :

Option B is correct option.
Explanation:
We need to change the mixed number to improper & use KCF to rewrite the question.
The expression is:

First converting mixed fraction into improper fraction
Multiply whole number with the denominator i,e (3*2=6) now add the numerator i.e (6+1) = 7/2
Solving:

Using KCF
KCF stands fro Keep it, Change it, Flip it.
It is used when division sign is converted to multiplication the term (1/3) is reversed to (3/1)
So, our expression will be

So, The question
after change the mixed number to improper & using KCF will become :

Option B is correct option.