(1十2/3+3/4+4/5)x(2/3十3/4+4/5十5/6)一(1+2/3十3/4十4/5十5/6)x(2/3十3/4十4/5)等于几?
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![(1十2/3+3/4+4/5)x(2/3十3/4+4/5十5/6)一(1+2/3十3/4十4/5十5/6)x(2/3十3/4十4/5)等于几?](/uploads/image/z/1629654-6-4.jpg?t=%EF%BC%881%E5%8D%812%2F3%2B3%2F4%2B4%2F5%EF%BC%89x%EF%BC%882%2F3%E5%8D%813%2F4%2B4%2F5%E5%8D%815%2F6%EF%BC%89%E4%B8%80%281%2B2%2F3%E5%8D%813%2F4%E5%8D%814%2F5%E5%8D%815%2F6%29x%282%2F3%E5%8D%813%2F4%E5%8D%814%2F5%29%E7%AD%89%E4%BA%8E%E5%87%A0%3F)
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(1十2/3+3/4+4/5)x(2/3十3/4+4/5十5/6)一(1+2/3十3/4十4/5十5/6)x(2/3十3/4十4/5)等于几?
(1十2/3+3/4+4/5)x(2/3十3/4+4/5十5/6)一(1+2/3十3/4十4/5十5/6)x(2/3十3/4十4/5)等于几?
(1十2/3+3/4+4/5)x(2/3十3/4+4/5十5/6)一(1+2/3十3/4十4/5十5/6)x(2/3十3/4十4/5)等于几?
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