2-8/11÷9/22-2/3
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你好亲,久等了,很高兴为您解答。2-8/11÷9/22-2/3=2-8/11×22/9-2/3=2-16/9-2/3=2-16/9-6/9=2-(16/9+6/9)=2-22/9=18/9-22/9=-4/9
咨询记录 · 回答于2022-11-09
2-8/11÷9/22-2/3
你好亲,久等了,很高兴为您解答。2-8/11÷9/22-2/3=2-8/11×22/9-2/3=2-16/9-2/3=2-16/9-6/9=2-(16/9+6/9)=2-22/9=18/9-22/9=-4/9
7/13×20+7/13÷1/6
18÷0.6×3/15÷1/3
九分之五参与十九分之十八除以七分之二十
7/13×20+7/13×6=7/13×(20+6)=7/13×26=7×2=14
18÷0.6×3/15÷1/3=30×3/15×3=6×3=18
九分之五参与十九分之十八除以七分之二十=5/9×18/19×7/20=10/19×7/20=7/38
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