5.5的五分之三是3.3,余2.2,2.2乘以七分之二等于0.62857172
(5.5-0.6)×2/7=1.4吨回答完毕~有疑问请追问~无疑问请点击【采纳】~祝学习进步\(^o^)/~~~
(5.5-3/5)×2/7=4.9×2/7=1.4