第1个回答 2011-12-11
8/5+(5/1-6/1)/5/1 =8/5+(5-6)/5 =8/5-1/5 =7/5 =1.4
第2个回答 2011-12-11
8/5+(5/1-6/1)÷5/1
=8/5+1-30/1
=120/75+1-4/120
=120/71+1
=120/191本回答被提问者采纳
=8/5+1-30/1
=120/75+1-4/120
=120/71+1
=120/191本回答被提问者采纳
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