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분수: 분모 2자리 덧셈2분수1

1
2 17
+
4 17
=
6 17
2
4 18
+
2 18
=
6 18
4
+
2
=
1 3
3
4 72
+
7 72
=
11 72
4
7 91
+
8 91
=
15 91
5
5 38
+
7 38
=
12 38
5
+
7
=
6 19
6
7 62
+
1 62
=
8 62
7
+
1
=
4 31
7
1 23
+
2 23
=
3 23
8
2 43
+
7 43
=
9 43
9
7 54
+
4 54
=
11 54
10
4 56
+
3 56
=
7 56
4
+
3
=
1 8
11
3 20
+
2 20
=
5 20
3
+
2
=
1 4
12
2 39
+
3 39
=
5 39
13
3 79
+
2 79
=
5 79
14
7 62
+
8 62
=
15 62
15
8 38
+
2 38
=
10 38
8
+
2
=
5 19