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분수: 분모 1자리 덧셈2분수2

1
2 2
+
1 2
=
3 2
2
1 5
+
2 5
=
3 5
3
2 3
+
9 3
=
11 3
4
9 9
+
4 9
=
13 9
5
4 6
+
7 6
=
11 6
6
7 4
+
2 4
=
9 4
7
2 7
+
1 7
=
3 7
8
1 4
+
6 4
=
7 4
9
6 2
+
3 2
=
9 2
10
3 2
+
2 2
=
5 2
11
1 8
+
9 8
=
10 8
1
+
9
=
5 4
12
9 9
+
1 9
=
10 9
13
1 4
+
7 4
=
8 4
1
+
7
=
2 1
14
7 8
+
6 8
=
13 8
15
6 2
+
7 2
=
13 2