简算:〔7/12乘11-11乘3/8〕除以33/12
问题描述:
简算:〔7/12乘11-11乘3/8〕除以33/12
答
〔7/12*11-11*3/8〕÷33/12
〔7/12*11-11*3/8〕×12/33
7/12*3-3/8*3
7/4-9/8
=5/8
答
5╱6
需要过程吗?
答
〔7/12×11-11×3/8〕÷33/12
=〔7/12-3/8〕×11×12/33
=〔7/12-3/8〕×12/3
=〔7/12-3/8〕×4
=7/12×4-3/8×4
=7/3-3/2
=14/6-5/6
=5/6