比56少7分之3多9的数是( )
问题描述:
比56少7分之3多9的数是( )
答
56-3/7+9
=55(4/7)+9
=61(4/7)
=431/7
比56少7分之3多9的数是( )
56-3/7+9
=55(4/7)+9
=61(4/7)
=431/7