6.只列式,不計算.
(1)甲乙兩地相距50千米,一輛汽車行了全程的$\frac{4}{5}$,行了多少千米?列式:50×$\frac{4}{5}$
(2)甲數(shù)是56,乙數(shù)是甲數(shù)的$\frac{1}{7}$,丙數(shù)是乙數(shù)的 $\frac{1}{8}$,丙數(shù)是多少?列式:56×$\frac{1}{7}$×$\frac{1}{8}$
(3)修路隊計劃每天修路$\frac{5}{6}$千米,一個星期(雙休日休息)可修好多少千米?$\frac{5}{6}$×5
(4)修路隊計劃每天修路$\frac{5}{6}$千米,上午修了$\frac{2}{3}$,上午修了多少千米?$\frac{5}{6}$×$\frac{2}{3}$
(5)修路隊計劃每天修路$\frac{5}{6}$千米,上午修了$\frac{2}{3}$,還剩幾分之幾沒有修?1-$\frac{2}{3}$
(6)修路隊實際每天修路$\frac{5}{6}$千米,比計劃每天多修$\frac{2}{3}$,計劃每天修多少千米?$\frac{5}{6}$÷(1+$\frac{2}{3}$).