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1/3除以(4%5/13%8/13)简便 (0.75%3/16)x(2/9+1/3...

简便计算 1/3÷(4-5/13-8/13) =1/3÷【4-(5/13+8/13)】 =1/3÷【4-1】 =1/3÷3 =1/9 (0.75-3/16)x(2/9+1/3) =9/16×5/9 =5/16

12x2=24 0.72/16=12 [0.72-3/16]x[2/9=8/7 1/4x[5/4-3/4]x1/5=4/5 11/461x416151=1554/7 54226151561/5555162x12616515465415845/545=451515612655465666/562652132233233332313 4655555555555555555555555555555555555555555555555555555555555...

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