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분수: 분모 1자리 덧셈4분수4

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