Question

甲數(shù)與乙數(shù)的比是4：3，甲數(shù)比乙數(shù)多，乙數(shù)比甲數(shù)少，甲數(shù)占甲乙兩數(shù)的．

Answer 1

解：4-3=1，
1÷3=，
1÷4=，
4÷（4+3）=；
答：甲數(shù)與乙數(shù)的比是4：3，甲數(shù)比乙數(shù)多，乙數(shù)比甲數(shù)少，甲數(shù)占甲乙兩數(shù)的；
故答案為：，，．
分析：甲數(shù)與乙數(shù)的比是4：3，假設(shè)乙數(shù)是3，則甲數(shù)就是4；求甲數(shù)比乙數(shù)多幾分之幾，就用甲數(shù)減去乙數(shù)然后除以乙數(shù)；求乙數(shù)比甲數(shù)少幾分之幾，就用甲數(shù)減去乙數(shù)然后除以甲數(shù)；求甲數(shù)占甲乙兩數(shù)的幾分之幾，用甲數(shù)除以甲乙兩數(shù)的和；即可得解．
點(diǎn)評(píng)：此題考查了比和分?jǐn)?shù)的意義，注意求多或少幾分之幾時(shí)，比誰(shuí)就除以誰(shuí)．