问题描述:
(1)(+9 1/2)+(-3 3/7)+8 1/2+(+3/7)
(2)(+4.25)+(-5 4/11)-(+2.75)-(+6 5/11)+7 3/4-1 1/4
就这些 尽快回答哈
(2)(+4.25)+(-5 4/11)-(+2.75)-(+6 5/11)+7 3/4-1 1/4
就这些 尽快回答哈
问题解答:
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