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`2(4)/(5)-1(3)/(8)+3(1)/(2)=?`
A. `4(17)/(40)`
B. `4(37)/(40)`
C. `3(27)/(40)`
D. `3(11)/(40)`

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Correct Answer - B
`?=2+(4)/(5)-1-(3)/(8)+3+(1)/(2)`
`=(2-1+3)+((4)/(5)-(3)/(8)+(1)/(2))`
`=4+(32-15+20)/(40)=4+(37)/(40)=4(37)/(40)`

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