题目内容
把2.5:
化成最简单的整数比是______,比值是______.
| 7 |
| 4 |
(1)2.5:
,
=
:
,
=(
×4):(
×4),
=10:7;
(2)2.5:
,
=
÷
,
=
×
,
=
;
故答案为:10:7,
.
| 7 |
| 4 |
=
| 5 |
| 2 |
| 7 |
| 4 |
=(
| 5 |
| 2 |
| 7 |
| 4 |
=10:7;
(2)2.5:
| 7 |
| 4 |
=
| 5 |
| 2 |
| 7 |
| 4 |
=
| 5 |
| 2 |
| 4 |
| 7 |
=
| 10 |
| 7 |
故答案为:10:7,
| 10 |
| 7 |
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