四分之三乘2.84除以三又五分之三除以(一又二分之一乘1.42）乘一又五分之四
=3/4×2.84×5/18×2/3÷1.42×9/5
=3/4×2/3×5/18×9/5×2.84÷1.42
=1/2×1/2×2
=1/2
四分之三乘2.84除以三又五分之三除以(一又二分之一乘1.42）乘一又五分之四,简便运算,快
四分之三乘2.84除以三又五分之三除以(一又二分之一乘1.42）乘一又五分之四,简便运算,快
数学人气：596 ℃时间：2019-11-23 06:06:04
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