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분수: 분모 2자리 덧셈2분수1

1
2 18
+
7 18
=
9 18
2
+
7
=
1 2
2
7 84
+
2 84
=
9 84
7
+
2
=
3 28
3
2 13
+
4 13
=
6 13
4
4 72
+
1 72
=
5 72
5
1 56
+
7 56
=
8 56
1
+
7
=
1 7
6
4 97
+
1 97
=
5 97
7
2 71
+
6 71
=
8 71
8
6 62
+
1 62
=
7 62
9
1 12
+
7 12
=
8 12
1
+
7
=
2 3
10
7 25
+
5 25
=
12 25
11
5 34
+
2 34
=
7 34
12
2 39
+
1 39
=
3 39
2
+
1
=
1 13
13
1 13
+
2 13
=
3 13
14
2 55
+
4 55
=
6 55
15
4 53
+
2 53
=
6 53