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staciecox1515
1/3 of 72 is 24 subtract 24 from 72 and get 48 and 1/4 of 48 is 12 so you subtract 12 from 48 and get 36 there for you have 36 dollars left over 
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It is given in the Question that, Anna earned $ 72.

And out of $ 72, she gave 1/3 to her mother.

And 1/3 rd of 72 = $24.

So she gave $24 to her mother. Therefore remaining amount is

[tex] 72-24=$48 [/tex]

And out of 48, she spent 1/4 on going out. And 1/4 of 48 is

[tex] \frac{1}{4} *48 = $12 [/tex]

So remaining amount is

[tex] 48-12=$36 [/tex]

We have to find 36 is what fraction of 72, and it is

[tex] \frac{36}{72} = \frac{1}{2} [/tex]

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