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분수: 분모 1자리 덧셈3분수3

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