甲乙丙三位朋友合租一辆出租车，讲好大家按路程分摊车费。甲在全程的五分之一处下车，到了二分之一处乙也下了车，丙一个人坐到终点，共付51元钱。甲、乙应各付给丙多少钱？

数学题解答：这是一道按比例分配的数学问题。最后钱是由丙付的，所以按照分摊车费的原则，甲、乙应该付给丙一些钱。

三人所坐车程比为：1/5：1/2：1，将每项都乘10，得到整数比为2：5：10。

2+5+10＝17

甲要付：51　×　2/17　＝　6（元）

乙要付：51　×　5/17　＝15（元）

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