【9分之5减(8分之7减0.875)】除以9分之4用简便方法算要过程.
问题描述:
【9分之5减(8分之7减0.875)】除以9分之4用简便方法算要过程.
答
[5/9-(7/8-0.875)]÷4/9 =[5/9-(0.875-0.875)]÷4/9 =5/9÷4/9 =5/9×9/4 =5/4
【9分之5减(8分之7减0.875)】除以9分之4用简便方法算要过程.
[5/9-(7/8-0.875)]÷4/9 =[5/9-(0.875-0.875)]÷4/9 =5/9÷4/9 =5/9×9/4 =5/4