若x大于y大于0,(y+1分之x+1)-x分之y=()

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若x大于y大于0,(y+1分之x+1)-x分之y=()
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若x大于y大于0,(y+1分之x+1)-x分之y=()
若x大于y大于0,(y+1分之x+1)-x分之y=()

若x大于y大于0,(y+1分之x+1)-x分之y=()
(x+1)/(y+1)-y/x
=(x^2+x-y^2-y)/x(y+1)
=(x-y)(x+y+1)/x(y+1)

(x+1)/(y+1)-y/x
=(x^2+x-y^2-y)/x(y+1)
=(x-y)(x+y+1)/x(y+1)
又不能化简,又不能干嘛,有什么意思啊?