90720:(207:23*840)=90720:(9-840)=90720:(-831)= -90720/831= -30240/277= - 109 47/277
22624:56*(816:8)=22624:56*102=41208
14700:21:7*49=720300:21:7=34300:7=4900
140:10:(49:7):(10:5)=140:10:7:2=1
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90720:(207:23*840)=90720:(9-840)=90720:(-831)= -90720/831= -30240/277= - 109 47/277
22624:56*(816:8)=22624:56*102=41208
14700:21:7*49=720300:21:7=34300:7=4900
140:10:(49:7):(10:5)=140:10:7:2=1