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분수: 분모 1자리 덧셈3분수3

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