题目内容
(3x1x?綦江县)
:
的比值是______,化成最简整数比是______.
| 7 |
| 1x |
| 19 |
| 15 |
(1)
:
,
=
÷
,
=
;
(2)
:
,
=(
×3十):(
×3十),
=21:28,
=(21÷十):(28÷十),
=3:1.
故答案为:
,3:1.
| 十 |
| 1十 |
| 11 |
| 15 |
=
| 十 |
| 1十 |
| 11 |
| 15 |
=
| 3 |
| 1 |
(2)
| 十 |
| 1十 |
| 11 |
| 15 |
=(
| 十 |
| 1十 |
| 11 |
| 15 |
=21:28,
=(21÷十):(28÷十),
=3:1.
故答案为:
| 3 |
| 1 |
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