简算 2/9+7/9×(1-11/14) 8/9×1/12+1/9÷12 (5/18+5/12-5/9)÷5/36 【11/18-(5/12-7/18)】×4/7
2个回答
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2/9+7/9×(1-11/14)
=2/9+7/9*3/14
=2/9+1/6
=4/18+3/18
=7/18
8/9×1/12+1/9÷12
=8/9*1/12+1/9*1/12
=(8/9+1/9)*1/12
=1*1/12
=1/12
(5/18+5/12-5/9)÷5/36
=5/18*36/5+5/12*36/5-5/9*36/5
=2+3-4
=1
【11/18-(5/12-7/18)】×4/7
=(11/18-5/12+7/18)*4/7
=(1-5/12)*4/7
=7/12*4/7
=1/3
数学辅导团祝你学习进步,不理解请追问,理解请及时采纳!(*^__^*)
=2/9+7/9*3/14
=2/9+1/6
=4/18+3/18
=7/18
8/9×1/12+1/9÷12
=8/9*1/12+1/9*1/12
=(8/9+1/9)*1/12
=1*1/12
=1/12
(5/18+5/12-5/9)÷5/36
=5/18*36/5+5/12*36/5-5/9*36/5
=2+3-4
=1
【11/18-(5/12-7/18)】×4/7
=(11/18-5/12+7/18)*4/7
=(1-5/12)*4/7
=7/12*4/7
=1/3
数学辅导团祝你学习进步,不理解请追问,理解请及时采纳!(*^__^*)
展开全部
2/9+7/9×(1-11/14)
=2/9+7/9-7/9×11/14
=1-11/18
=7/18
8/9×1/12+1/9÷12
=8/9×1/12+1/9×1/12
=(8/9+1/0)×1/12
=1×1/12
=1/12
(5/18+5/12-5/9)÷5/36
=(5/18+5/12-5/9)×36/5
=(5×2+5×3-5×4)×1/5
=5/5
=1
【11/18-(5/12-7/18)】×4/7
=[11/18+7/18-5/12]×4/7
=(1-5/12)×4/7
=7/12×4/7
=1/3
=2/9+7/9-7/9×11/14
=1-11/18
=7/18
8/9×1/12+1/9÷12
=8/9×1/12+1/9×1/12
=(8/9+1/0)×1/12
=1×1/12
=1/12
(5/18+5/12-5/9)÷5/36
=(5/18+5/12-5/9)×36/5
=(5×2+5×3-5×4)×1/5
=5/5
=1
【11/18-(5/12-7/18)】×4/7
=[11/18+7/18-5/12]×4/7
=(1-5/12)×4/7
=7/12×4/7
=1/3
追问
我去- -麻麻说复制可不是好习惯!
追答
你可以不选我,但不能侮辱我,我耽误时间为你解答,还遭受你的污蔑。
没天理了,气死了
你去看看我答的题,哪个是复制的。
参考http://58.130.5.100//
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