(1)/(5)+(4)/(5)xx(2)/(9)div(1)/(7)-(1)/(...

`(1)/(5)+(4)/(5)xx(2)/(9)div(1)/(7)-(1)/(3)=?`

`1(1)/(9)`

`1(2)/(9)`

`(11)/(15)`

`1(8)/(9)`

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