问题 解答题
(1)
3
4
1
5
(2)28:56(3)0.7:0.14(4)5吨:20千克.
答案

(1)

3
4
1
5

=

3
4
÷
1
5

=

15
4

(2)28:56,

=28÷56,

=

1
2

(3)0.7:0.14,

=0.7÷0.14,

=5;

(4)5吨:20千克,

=5000千克:20千克,

=5000÷20,

=250.

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