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简算题7.32-12分支7+2.68-4分之1
人气:251 ℃ 时间:2020-05-18 19:38:20
解答
7.32-(7/12)+2.68-(1/4)
=(7.32+2.68)-(7/12+1/4)
=10-5/6
=9又1/6
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