Question

Andy has a collection of movie DVD's. In Andy's collection 3/5 of the DVD's are action and 1/4 of the DVD's are comedy . Andy said 4/9 of his collection is action is action or comedy . Cindy said that Andy made an error. Explain whether or not Andy is correct or incorrect and why.

Answer 1

Andy is wrong.
3/5 = 12/20
1/4 = 5/20
Add them up
12/20 + 5/20 = 17/20
17/20 is not equal to 4/9

Answer 2

Yeah andy is wrong.
3/5 = 12/20
1/4 = 5/20
12/20 + 5/20 = 17/20
17/20 does not = 4/9