题目内容
化简比并求比值.
| 0.5:5 | 48:
|
45:72 |
|
(1)0.5:5=(0.5×2):(5×2)=1:10;
0.5:5=1:10=0.1;
(2)48:
=(48×7):(
×7)=336:6=56:1;
:
=5:6=5÷6=
.
0.5:5=1:10=0.1;
(2)48:
| 6 |
| 7 |
| 6 |
| 7 |
48:
(3)45:72=(45÷9):(72÷9)=5:8; 45:72=5:8=
(4)
|
| 2 |
| 3 |
| 4 |
| 5 |
| 5 |
| 6 |
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