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由三个或三个以上的数量组成的比叫做这几个数量的连比。根据比的意义,把已知的数量关系巧妙地转化成连比,再按比例分配解,可使有些问题找到合理、简捷的解题方法。建议:小朋友们在学习下面内容时,自己先解答,然后再看解题分析。一、直接求连比解题例1甲、乙、丙三人合买一台电视机,甲付钱数的1/2等于乙付钱数的1/3,等于丙付钱数的3/7,已知丙比甲多付了120元。问这台电视机多少元?
A ratio of three or more quantities is called the ratio of these quantities. According to the ratio of the meaning of the number of known relationship cleverly converted into ratio, then the proportion of the distribution of solutions, can make some problems to find a reasonable and simple solution to the problem. Recommendation: children learn the following content, their answer, and then look at the problem analysis. First, the direct solution to even the ratio of cases 1 A, B, C together buy a TV, A pay 1/2 of the number equal to 1/2 to pay the money, equal to pay the number of 3 / 7, C than known to pay 120 yuan more. How much is this TV set?