异分母分数加减法练习题(精选.)
巡山小妖精
879次浏览
2021年01月22日 07:42
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-描写人的四字词语
一、口算。结果请用最简分数表示。
1
1
1
1
2
1
4
1
7
3
+
=
-
=
-
=
-
=
-
=
2
3< br>2
4
5
5
7
7
8
8
1
2< br>5
2
1
1
3
1
2
1
+
=
-
=
+
=
-
=
+
=
5
6
3
3
5
8
4
3
3
10
5
5
9
1
4
2
1
1
1
1
-
=
-
=
-
=
+
=
-
=
5
5
6
3
2
8
12
12
10
10
3
3
1
1
4
3
7
5
5
+
=
-
=
+
=
1
-
=
+
=
8
8< br>2
5
7
7
8
6
6
5
3
1< br>9
3
5
5
3
5
1
-
=
+
=
-
=
-
=
+
=
5
2
7
7
8
8
12
10
10
1
7
1
3
3
1
9
1
9
3
+
=
+
=
+
=
-
=
-
=
6
12
4
4
7
2
10
2
10
5
5
8< br>1
7
19
13
19
3
+
=
+
=
-
=
+
=
9
9
8
8
24
24
36
36
3
4
11
1
1
1
12
3
+
=
-
=
-
=
-
=
7
7
8
8
4
9
13
13
8
4
1
1
1
3
1
1
7
3
3
+
+
=
1
-
-
=
+
+
=
-
+
=
9
11
9
6
6
4
4
4
8
8
8+
-
=
=
-
=
+
=
+
=
-
=
二、计算(能简算的要简算)
。
5
3
1
1
5
3
1
1
(
1
)
-
+
(
2
)
1
-
+
(
3
)
+
2
-
1
8
10
4
24
48
4
5
2
3
2
1
5
4
2
2
3
3
2
4
)
5
-
2
+
3
(
5
)
-
+
-
(
6
)
-﹙
-
﹚
5
3
6< br>7
15
7
15
4
4
3
1
7
3
3
4
1
1
(
7
)
2
-
-
(
8
)
4.75
+
5
-
3
(
9
)
-
+
8
8
8
4
5
4
3
word.
9
3
3
7
3
27
13
5
(
10
)
+
-
(
11
)
1
-
+
(
12
)
+﹙
-
﹚
10
20
15
12
4
28
14
7
5
2
7
1
1
5
5
1
1
(
13
)
2
-﹙
+
)
(
14
)
15
-
5
+
7
(
15
)
1
-﹙
3
-
1
﹚
6
3
12
4
2
6
6
3
2
1
2
7
5
3
1
2
16
)
1.875
+
(
17
)
+
+
(
18
)
+
-
3
8
15
8
6
4
3
11
1
1
7
3
7
3
1
(
19)
-
(
+
)
(
20
)
11
-
-
(
21
)
-
(
-
)
12
6
8
10
10
12
4
2
1
3
3
4
2
1
2
3
5
1
5
4
-(
-
)
+
+
+
+
-
+
2
4
8
4
7
2
5
3
5
17
51
3
1
-
7
3
5
3
1
1 7
1
3
11
15
8
-
-
(
-
)
+
+
+
+
12
4
12
7
10
12
16
15
18
18
10
1
2
7
5
3
1
7
3
1
11
1
1
-
-
+
+
+
-
-
(
+
)
10
8
8
12
6
8
8
15
8
6
4
3
7
3
7
3
1
1
3
3
11
-
-
-
(
-
)
-(
-
)
10
10
12
4
2
2
4
8
1
3
3
5
1
3
2
5
1
-
(
-
)
-
(
+
)
+
-
2
4
8
6
3
10
3
6
6
word.
45
8
2
8
11
-(30
5
+8
11
) 4
7.6+1
5
9
+
4
4
5
+
9
24-(7
(
1
)
3x
-
1
6
=
1
5
6
(
4
)
3
1
3
4
-
x
=
1
8
(
7
)
X+
2
7
=
2
3
4
2
7
+6
9
+5
3
7
+
7
9
15
1
2
-3
1
5
-2
1
4
5
7
9
+12
12
) 2
1
4
-1
3
16
+0.75
(
2
)
7.5
-
x
=
2
1
4
(
3
)
4
1
3
+
x
=
5
(
5
)
3x
-
4
5
=
2
-
4
5
(
6
)
X
-
3
5
4
=
8
(
8
)
X
-
1
3
1
2
6
=
8
(
9
)
5
+
X=
3
word.
1
2
4
1
1
3
1
2
+x=
-x=
x-
=
+
X=
7
3
5
4
6
8
5
3
X
-
2
2
3
5
1
3
=
X+
=
X
-
=
6
8
7
3
4
8
24
2
1
3
2
(
1
)
减去
与
的和,差是多少?(
2
)一个数比
8
与
1
的差大
1.5
,这个数是多少?
17
3
4
4
5
7
19
3
1
(
3
)
0.6
与
的差比
1.3
少多少?(
4
)
减去
与
的和,差是多少?
15
12
18
24
word.