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dangina [55]
3 years ago
14

Andy has a collection of movie dvds. in andys collection 3/5 of the dvds are action 1/4 of the dvds are comedy. andy said that 4

/9 of his collection is action or comedy. cynthia said that andy made an errer. explain wether andy is correct or incorect and why.
Mathematics
1 answer:
Lerok [7]3 years ago
4 0
If 3/5 are action and 1/4 are comedy then:

(3/5)+(1/4) are action or comedy

To add/subtract fractions you need a common denominator...

(3/5)*(4/4)+(1/4)(5/5)

(12/20)+(5/20)

17/20

So 17/20 (85%) of his collection are action or comedy not 4/9...


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