+201 Gerri is working on a project that needs to be halfway completed by Friday. So far, she has completed of the project. How much of the project does she have to finish by Friday?
A 3/5
B 3/10
C 7/10
D 2/5
+33661 You want the difference between 1/2 and 1/5. To find this express each fraction in terms of a common denominator. Here 10 is the least common denominator and 1/2 = 5/10 and 1/5 = 2/10, so the difference is 5/10 - 2/10 = 3/10. So she has to finish 3/10 by Friday.
