把数字1~9填在括号里使等式成立,每个数字只能用一次.( )( )( )/( )( )=( )-( )=( )/( )

问题描述:

把数字1~9填在括号里使等式成立,每个数字只能用一次.( )( )( )/( )( )=( )-( )=( )/( )

138/69 = 7 - 5 = 4/2
186/93 = 7 - 5 = 4/2
158/79 = 4 - 2 = 6/3
184/92 = 7 - 5 = 6/3
376/94 = 5 - 1 = 8/2