a/b=c/d=e/f=3/4,求a+2c/b+2d的值

来源：学生作业帮助网编辑：六六作业网时间：2024/12/26 14:27:57

a/b=c/d=e/f=3/4,求a+2c/b+2d的值a/b=c/d=e/f=3/4,求a+2c/b+2d的值a/b=c/d=e/f=3/4,求a+2c/b+2d的值∵a/b=c/d=3/4,∴a=

a/b=c/d=e/f=3/4,求a+2c/b+2d的值
a/b=c/d=e/f=3/4,求a+2c/b+2d的值

a/b=c/d=e/f=3/4,求a+2c/b+2d的值
∵a/b=c/d=3/4,
∴a=3/4b,c=3/4d
∴(a+2c)/(b+2d)
=(3/4b+2*3/4d)/(b+2d)
=3/4*(b+2d)/(b+2d)
=3/4