Answer:
She has enough with cups left over.
Step-by-step explanation:
For this equation, it's probably easiest to use improper fractions.
At the start, she has 4 cups, or
, which can be converted to
(which is useful for the next part) by multiplying the numerator and denominator by 2.
When she uses 2 cups, which can be converted to
. When subtracting this from the original, you get
-
=
.
She borrows another cup, or of a cup, which gets added on to the previous result, giving
+
=
.
The recipe calls for 2 cups, which can be converted to
or
.
-
=
, meaning she has
cups left over.
** solving this mainly uses conversion to improper fractions and adding/subtracting fractions, which may be skills you would like to practice. I'm always happy to help!