题目内容
化简下列各比.
| 4d:25= | d.8:d.d4= |
|
(1)47:72
=(47÷2):(72÷2)
=8:2,
(7)7.8:7.74
=(7.8÷7.74):(7.74÷7.74)
=77:1,
(3)
:
=(
×12):(
×12),
=47:77.
=(47÷2):(72÷2)
=8:2,
(7)7.8:7.74
=(7.8÷7.74):(7.74÷7.74)
=77:1,
(3)
| 8 |
| 3 |
| 左 |
| 2 |
=(
| 8 |
| 3 |
| 左 |
| 2 |
=47:77.
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