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분수: 분모 2자리 덧셈3분수8

1
3 80
+
4 80
=
7 80
2
4 21
+
5 21
=
9 21
4
+
5
=
3 7
3
5 67
+
4 67
=
9 67
4
4 81
+
9 81
=
13 81
5
9 21
+
4 21
=
13 21
6
4 91
+
6 91
=
10 91
7
6 19
+
8 19
=
14 19
8
8 92
+
2 92
=
10 92
8
+
2
=
5 46
9
8 82
+
2 82
=
10 82
8
+
2
=
5 41
10
9 72
+
4 72
=
13 72
11
3 34
+
4 34
=
7 34
12
4 41
+
6 41
=
10 41
13
3 16
+
8 16
=
11 16
14
8 21
+
3 21
=
11 21
15
3 54
+
4 54
=
7 54