第1个回答 2016-05-09
9/4减(1/4加1/5,等于几？
9/4-(1/4+1/5)
=9/4-1/4-1/5
=2-1/5
=9/5本回答被网友采纳
9/4-(1/4+1/5)
=9/4-1/4-1/5
=2-1/5
=9/5本回答被网友采纳
第2个回答 2016-05-09
第3个回答 2016-05-09
9/4-(1/4+1/5）
=9/4-1/4-1/5
=2-1/5
=1又4/5
=9/4-1/4-1/5
=2-1/5
=1又4/5
第4个回答 2016-05-09
9/4-(1/4+1/5)
=9/4-1/4-1/5
=8/4-1/5
=2-1/5
=9/5
=9/4-1/4-1/5
=8/4-1/5
=2-1/5
=9/5