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분수: 분모 1자리 덧셈3분수7

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