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분수: 분모 2자리 덧셈2분수6

1
2 68
+
5 68
=
7 68
2
8 50
+
4 50
=
12 50
8
+
4
=
6 25
3
4 77
+
2 77
=
6 77
4
6 52
+
5 52
=
11 52
5
5 83
+
4 83
=
9 83
6
4 54
+
1 54
=
5 54
7
3 31
+
2 31
=
5 31
8
4 52
+
5 52
=
9 52
9
4 65
+
2 65
=
6 65
10
2 39
+
6 39
=
8 39
11
6 13
+
3 13
=
9 13
12
3 75
+
4 75
=
7 75
13
4 91
+
6 91
=
10 91
14
6 65
+
3 65
=
9 65
15
3 43
+
2 43
=
5 43