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분수: 분모 1자리 덧셈4분수2

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