11、( )÷[( )÷4-0.75]÷0.03125=                ;

问题描述:

11、( )÷[( )÷4-0.75]÷0.03125=                ;

(8/3-275/9)÷【(7/3-10/9)÷4-0.75】÷0.03125
原式=(24/9-275/9)÷[(21/9-10/9)÷4-0.75]÷0.03125
=-251/9÷(11/9÷4-3/4)÷0.03125
=-251/9÷(11/36-3/4)÷0.03125
=251/9÷(-4/9)÷0.03125
=251/4÷0.03125
=62.75÷0.03125
=2008