问题 解答题
化简比并求比值:
1
4
1
12
0.25:
3
4
答案

1
4
1
12

=(

1
4
×12):(
1
12
×12),

=3:1;

1
4
1
12

=

1
4
÷
1
12

=3;

0.25:

3
4

=

1
4
3
4

=(

1
4
×4):(
3
4
×4),

=1:3,

0.25:

3
4

=

1
4
3
4

=

1
4
÷
3
4

=

1
3

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