题目内容
(2011?宿州模拟)把0.56:0.64化成最简单整数比是
.
7
7
:8
8
,比值是7 |
8 |
7 |
8 |
分析:(1)根据比的基本性质作答,即比的前项和后项同时乘或除以一个数(0除外)比值不变;
(2)用比的前项除以后项即可.
(2)用比的前项除以后项即可.
解答:解:(1)0.56:0.64,
=(0.56×100):(0.64×100),
=56:64,
=(56÷8):(64÷8),
=7:8,
(2)0.56:0.64,
=0.56÷0.64,
=
,
故答案为:7、8;
.
=(0.56×100):(0.64×100),
=56:64,
=(56÷8):(64÷8),
=7:8,
(2)0.56:0.64,
=0.56÷0.64,
=
7 |
8 |
故答案为:7、8;
7 |
8 |
点评:注意化简比的结果是一个比,它的前项和后项都是整数,并且是互质数;而求比值的结果是一个商,可以是整数,小数或分数.
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