题目内容
甲是乙的
,甲:乙是______;乙:甲是______;甲:(甲+乙)是______;乙:(甲+乙)是______;乙是甲的______倍.
| 7 |
| 9 |
假设乙是“1”,则甲是
,甲+乙=1+
=
,
所以甲:乙=
:1=(
×9):(1×9)=7:9,
乙:甲=9:7,
甲:(甲+乙)=
:
=7:16,
乙:(甲+乙)=1:
=9:16,
乙÷甲=1÷
=
;
| 7 |
| 9 |
| 7 |
| 9 |
| 16 |
| 9 |
所以甲:乙=
| 7 |
| 9 |
| 7 |
| 9 |
乙:甲=9:7,
甲:(甲+乙)=
| 7 |
| 9 |
| 16 |
| 9 |
乙:(甲+乙)=1:
| 16 |
| 9 |
乙÷甲=1÷
| 7 |
| 9 |
| 9 |
| 7 |
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