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As$$\frac{5}{3} \times \frac{6}{4} \times \frac{7}{5} \times ... \times \frac{x}{y}$$ =20, the numerator of the latter fraction is 1 more than the numerator of the former fraction, and the denominator of the latter fraction is 1 more than the denominator of the former fraction, what is the value of x+y?
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· 相关考点
2.1.1 分数的加减乘除运算 考察角度二：分数乘法运算与约分
以上解析由 考满分老师提供。
