(7^2+1)/(7^2-1)=1+1/8-1/6是如何推导出来的应该是(7^2+1)/(7^2-1)=1+1/6-1/8

Question

(7^2+1)/(7^2-1)=1+1/8-1/6是如何推导出来的
应该是(7^2+1)/(7^2-1)=1+1/6-1/8

Answer 1

左边=(7^2+1)/(7^2-1)
=(49+1)/(49-1)
=50/48
=25/24
=1+1/24
=1+3/24-2/24
=1+1/8-1/12
≠右边
无法推导出来题中的结果.