Katie filled a measuring cup with 9/10 of a cup of vegetable oil. then she poured 1/4 of a cup of the oil into a frying pan. how much oil is left in the measuring cup? simplify your answer.

Hello,

The answer is "4/5".

Reason:

First write the equation:

9*4=36
10*4=40
-
1*4=4
4*10=40

36-4=32

32/2=16/2=8/2=4
40/2=20/2=10/2=5

=4/5

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit