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분수: 분모 2자리 덧셈2분수3

1
2 31
+
1 31
=
3 31
2
1 86
+
3 86
=
4 86
1
+
3
=
2 43
3
3 95
+
6 95
=
9 95
4
3 86
+
9 86
=
12 86
3
+
9
=
6 43
5
6 29
+
4 29
=
10 29
6
4 95
+
1 95
=
5 95
4
+
1
=
1 19
7
1 52
+
7 52
=
8 52
1
+
7
=
2 13
8
7 43
+
2 43
=
9 43
9
2 81
+
8 81
=
10 81
10
8 21
+
9 21
=
17 21
11
9 61
+
3 61
=
12 61
12
3 33
+
2 33
=
5 33
13
2 34
+
5 34
=
7 34
14
5 45
+
9 45
=
14 45
15
9 74
+
4 74
=
13 74