题目内容
| 5 |
| 6 |
| 7 |
| 10 |
84:63.
57:0.36.
(1)
:
=(
×30):(
×30)
=25:21
(2)84:63
=(84÷21):(63÷21)
=4:3
(3)57:0.36
=(57×100):(0.36×100)
=5700:36
=(5700÷12):(36÷12)
=475:3
| 5 |
| 6 |
| 7 |
| 10 |
=(
| 5 |
| 6 |
| 7 |
| 10 |
=25:21
(2)84:63
=(84÷21):(63÷21)
=4:3
(3)57:0.36
=(57×100):(0.36×100)
=5700:36
=(5700÷12):(36÷12)
=475:3
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