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3X4X5X6X7X8(1/3+1/4+1/5+1/6+1/7+1/8)等于多少/表示分号
题目详情
3X4X5X6X7X8(1/3+1/4+1/5+1/6+1/7+1/8)等于多少
/表示分号
/表示分号
▼优质解答
答案和解析
3X4X5X6X7X8(1/3+1/4+1/5+1/6+1/7+1/8)
=4X5X6X7X8+ 3X5X6X7X8+3X4X6X7X8+3X4X5X7X8+3X4X5X6X8+3X4X5X6X7
=6720+5040+4032+3360+2880+2520
=24552
=4X5X6X7X8+ 3X5X6X7X8+3X4X6X7X8+3X4X5X7X8+3X4X5X6X8+3X4X5X6X7
=6720+5040+4032+3360+2880+2520
=24552
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