The vegetable farm brings in (8/3) tons of cabbage, the cucumbers shipped are cabbage (9/10), the cucumbers shipped are less than radishes (1/7), how many tons of radishes are shipped.
菜场运来白菜(8/3)吨，运来黄瓜是白菜的(9/10)，运来的黄瓜比萝卜少(1/7)，运来的萝卜多少吨．
<result>2.8</result>