题目内容

计算:
(2.25÷0.375×
1
6
-0.3×2
2
3
)÷(2.3×0.25+0.27×2.5)=______.
(2.25÷0.375×
1
6
-0.3×2
2
3
)÷(2.3×0.25+0.27×2.5)
=(
9
4
×
8
3
×
1
6
-
3
10
×
8
3
)÷(0.23×2.5+0.27×2.5),
=(1-
4
5
)÷[(0.23+0.27)×2.5],
=
1
5
÷[0.5×2.5],
=
1
5
÷
5
4

=
4
25

故答案为:
4
25
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