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求解一道简便运算题(要有过程)
(2.5+2/3)÷(1+1/3×1.75)
人气:345 ℃ 时间:2020-06-04 05:52:37
解答
(2.5+2/3)÷(1+1/3×1.75)
=2.5÷(1+1/3×1.75)+2/3÷(1+1/3×1.75)
=2.5÷7/3+2/3÷7/3
=15/14+4/14
=19/14
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