脱式计算51.6÷[(3 2 5 -1.25)× 4 5 ]( 5 6 - 3 4 )

脱式计算51.6÷[(3 2 5 -1.25)× 4 5 ]( 5 6 - 3 4 )÷( 1 4 + 1 6 )
2025-04-07 02:34:45
推荐回答(1个)
回答1:

(1)51.6÷[(3
2
5
-1.25)×
4
5
],
=51.6÷[(3.4-1.25)×
4
5
],
=51.6÷[2.15×
4
5
],
=51.6÷1.72,
=30;

(2)(
5
6
-
3
4
)÷(
1
4
+
1
6
),
=
1
12
÷
5
12

=
1
12
×
12
5

=
1
5