（2/3-1/2+1/4）÷1/36 6/19×13/17+4/19×6/17 用简便方法计算要有过程（2/3-1/2+1/4）÷1/366/19×13/17+4/19×6/17

（2/3-1/2+1/4）÷1/36 6/19×13/17+4/19×6/17 用简便方法计算要有过程（2/3-1/2+1/4）÷1/366/19×13/17+4/19×6/17
（2/3-1/2+1/4）÷1/36 6/19×13/17+4/19×6/17 用简便方法计算要有过程
（2/3-1/2+1/4）÷1/36
6/19×13/17+4/19×6/17

（2/3-1/2+1/4）÷1/36 6/19×13/17+4/19×6/17 用简便方法计算要有过程（2/3-1/2+1/4）÷1/366/19×13/17+4/19×6/17
(2/3-1/2+1/4)除1/36
=(2/3-1/2+1/4)*36
=24-18+9
=15