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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.

Respuesta :

This question is based on greatest common multiple.

Answer:

Cynthia is right that Andy made an error.

Step-by-step explanation:

As per Andy, action dvds are = [tex]\frac{3}{5}[/tex]

And comedy dvd's are = [tex]\frac{1}{4}[/tex]

So, in total these become = [tex]\frac{3}{5}+ \frac{1}{4}[/tex]

= [tex]\frac{12+5}{20}[/tex] = [tex]\frac{17}{20}[/tex]

This is not 4/9 as per Andy.

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