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분수: 분모 2자리 덧셈3분수2

1
3 27
+
2 27
=
5 27
2
1 42
+
3 42
=
4 42
1
+
3
=
2 21
3
3 17
+
7 17
=
10 17
4
7 20
+
9 20
=
16 20
7
+
9
=
4 5
5
9 39
+
4 39
=
13 39
9
+
4
=
1 3
6
4 61
+
3 61
=
7 61
7
3 17
+
6 17
=
9 17
8
4 56
+
1 56
=
5 56
9
1 23
+
3 23
=
4 23
10
3 92
+
5 92
=
8 92
3
+
5
=
2 23
11
5 83
+
8 83
=
13 83
12
8 31
+
4 31
=
12 31
13
4 16
+
1 16
=
5 16
14
1 30
+
4 30
=
5 30
1
+
4
=
1 6
15
4 54
+
1 54
=
5 54