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분수: 분모 1자리 덧셈3분수4

1
3 4
+
1 4
=
4 4
3
+
1
=
1 1
2
1 4
+
3 4
=
4 4
1
+
3
=
1 1
3
2 3
+
8 3
=
10 3
4
8 8
+
9 8
=
17 8
5
9 7
+
1 7
=
10 7
6
1 3
+
5 3
=
6 3
1
+
5
=
2 1
7
1 2
+
4 2
=
5 2
8
4 2
+
9 2
=
13 2
9
9 5
+
7 5
=
16 5
10
7 3
+
2 3
=
9 3
7
+
2
=
3 1
11
2 9
+
1 9
=
3 9
2
+
1
=
1 3
12
1 6
+
7 6
=
8 6
1
+
7
=
4 3
13
7 3
+
6 3
=
13 3
14
6 6
+
5 6
=
11 6
15
5 4
+
8 4
=
13 4