题目内容
求比值
49:28
:
4.5:0.45.
49:28
| 3 |
| 7 |
| 5 |
| 21 |
| 102 |
| 68 |
4.5:0.45.
(1)49:28,
=49÷28,
=
,
=
;
(2)
:
,
=
÷
,
=
×
,
=
;
(3)
,
=102÷68,
=1.5;
(4)4.5:0.45,
=4.5÷0.45
=10.
=49÷28,
=
| 49 |
| 28 |
=
| 7 |
| 4 |
(2)
| 3 |
| 7 |
| 5 |
| 21 |
=
| 3 |
| 7 |
| 5 |
| 21 |
=
| 3 |
| 7 |
| 21 |
| 5 |
=
| 9 |
| 5 |
(3)
| 102 |
| 68 |
=102÷68,
=1.5;
(4)4.5:0.45,
=4.5÷0.45
=10.
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