小学六年级分数乘除法混合计算
播音与主持专业-
分数计算
14
2
p>
2
()
12
()<
/p>
()
(
p>
2
)
=
(
3
)
1
=
1
.
化简:
(
1
)
(
< br>4
)
0.45
()
3
12
()
18
()
()
转化:
(
1
)
1
2
2
()
23
()
3
()
=
=
()
(
4
)
2
=
< br>
(
2
)
=
(
)
(
3
)
p>
1
11
()
7
p>
()
6
()
2
p>
3
()
()
()<
/p>
1
1
3
2
()
+
+
=
通分:
(
1
)
+
=
(
2
)
+
< br>=
=
3
4
12
12
()
2
3
()
()
()
2
3
14
2
×
3
×
14
()
4
14
4
14
2
()
=
约分:
(
1
)
×
×
=
(
2
p>
)
×
×
2
=
×
×
=
3
4
21
3
×
4
×
21
()
7
12
< br>7
12
1
()
< br>2
8
3
2
()
()
2
8
1
8
9
()
()
(3)
÷
÷
=
×
×
p>
=
(
4
)
p>
2
1
=
×
×
=
3
9
4
< br>3
()
()
3
< br>9
5
3
8
()
()
2.
(
1<
/p>
)
p>
1
20
1
4
21
3
5
12
5
(
4
)
3
3
p>
(
5
)
(
p>
6
)
3
9
5
7
8
2
6
< br>15
9
2
46<
/p>
4
4
27
2
p>
12
9
(
2
p>
)
2
(
p>
3
)
23<
/p>
8
22
9
8
p>
3
18
24
3.<
/p>
(
1
)
4
5
5
(2)
(
4
)
1
3
2
p>
5
1
2
2
2
5
9
1
4
3
10
+
+
+
(
3
)
+
+
+
p>
7
11
7
11
p>
2
14
2
14
p>
8
1
8
2
3
1
2
1
5
5
×
÷
< br>
(
5
)
p>
(
×
)÷(
×
p>
)
(
6
)
(
×
)÷(
÷
7
)
3
9
6
17
16
17
16
5
7
5
4.
(
1
)
÷
3
< br>+
(
4
)
1
3
4
p>
1
8
15
1
2
3
1
1
(2)
×
-
÷
4
(
3
)
p>
1
×
-
÷
5
15
16
10
3
10
10
5
1
8
1
1
3
8
1
1
6
25
1
< br>1
×
+
÷
(
5
)
1
×
+
÷
(
6
)
×
p>
-
÷
4
10
10
40
4
21
30
10
5
p>
24
8
10
5.<
/p>
(
1
)
×
[
-
(
8
9
3
p>
4
7
1
2
4
1
7
-
)] (2)
+
(
+<
/p>
)
×
16
4
3
7
2
25
(
(
3
)
4
1
1
3
3
4
2
2
)
15
(
)
24
(
4
)
p>
6
×
2
-
2
÷
5
5
4
11
15
5
6
8
(
5
)
p>
5
5
1
3
1
18
5
5
2
×
+
÷
3
+
8
÷
(6)
÷
+
<
/p>
18
7
7
5
p>
7
5
7
14
5
6.
(
1
)
1
2
5
p>
4
12
2
3
3
8
2
1
×
+
÷
(2)
×
+
×
(3)
×(
31+1
< br>)
9
3
9
9
5
17
18
17
15
14
4
6
9
2
13
3
4
(4)
1
×
1
+
÷
1
+
(5)1.25
×
10
+3
÷
+26.4
×
1.
25
5
7
5
5
35
5
5