先到先得

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 19:06:05

先到先得
先到先得

先到先得
(2/3+2/9)×(5/8-7/16)
=8/9×3/16
=1/6
1/6÷[9/17×(3/4+2/3)]
=1/6÷[9/17×3/4+9/17×2/3]
=1/6÷[27/68+6/17]
=1/6÷51/68
=1/6×68/51
=34/153
6/7×5/8+3/8÷7/6
=6/7×5/8+3/8×6/7
=6/7×(5/8+3/8)
=6/7×1
6/7
2-6/13÷9/26-2/3
=2-6/13×26/9-2/3
=2-4/3-2/3
=2-(4/3+2/3)
=2-2
=0

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