First make each fraction into improper
3 x 10 = 30 + 3 = 33
3 3/10 = 33/10
1 x 7 = 7 + 4 = 11
1 4/7 = 11/7
-------------------------------------------------------------------------------------------------------------------
(33/10)/(11/7)
Flip the second fraction and change the division to multiplication.
33/10 x 7/11
Simplify
33/11 = 3/1
3/10 x 7/1
Multiply straight across
3 x 7 = 21
10 x 1 = 10
-----------------------------------------------------------------------------------------------------------------
21/10, or 2.1 is your answer
-----------------------------------------------------------------------------------------------------------------
hope this helps