The instructions state that Cheryl needs 4/9 square yards of one type of material and 2/3 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 6/12 square yards left that she did not use. What is the total amount of square yards of material Cheryl used?	Choose the correct choice from the following.
A) 1/12
B) 1/9
C) 2/3
D) 1 1/9
E) 11/18
total bought = 4/9+2/3   left part 6/12---&gt;1/2   so used part 4/9+2/3-1/2=11/18   Ans 11/18
<result>E</result>
The instructions state that Cheryl needs 4/9 square yards of one type of material and 2/3 square yards of another type of material for a project. She buys exactly that amount. After finishing the project, however, she has 6/12 square yards left that she did not use. What is the total amount of square yards of material Cheryl used?