exam Maths Puzzle Numerical Ability

(x^2/y^2) - 1 / (x/y) + 1

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exam Other Question

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Directions says to solve

x minus 1 over x divided by x plus 1 minus 2 over x all equals 1
x-__1__
x
_____________=1
x+1 - __2__
x PAGE NUMBER 320 NUMBERS 11 AND 13 pLEASE AND THANKS VERY MUCH :)