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분수: 분모 2자리 덧셈3분수4

1
3 40
+
1 40
=
4 40
3
+
1
=
1 10
2
1 12
+
2 12
=
3 12
1
+
2
=
1 4
3
2 32
+
9 32
=
11 32
4
9 25
+
4 25
=
13 25
5
4 29
+
3 29
=
7 29
6
3 27
+
2 27
=
5 27
7
2 50
+
4 50
=
6 50
2
+
4
=
3 25
8
8 49
+
9 49
=
17 49
9
9 28
+
8 28
=
17 28
10
8 21
+
1 21
=
9 21
8
+
1
=
3 7
11
1 24
+
5 24
=
6 24
1
+
5
=
1 4
12
5 33
+
2 33
=
7 33
13
2 44
+
3 44
=
5 44
14
3 43
+
9 43
=
12 43
15
4 39
+
3 39
=
7 39