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분수: 분모 2자리 덧셈3분수8

1
3 80
+
1 80
=
4 80
3
+
1
=
1 20
2
7 61
+
1 61
=
8 61
3
1 74
+
2 74
=
3 74
4
1 23
+
6 23
=
7 23
5
6 75
+
1 75
=
7 75
6
1 31
+
2 31
=
3 31
7
2 77
+
1 77
=
3 77
8
1 22
+
4 22
=
5 22
9
4 62
+
1 62
=
5 62
10
1 55
+
3 55
=
4 55
11
3 81
+
1 81
=
4 81
12
1 14
+
2 14
=
3 14
13
5 62
+
4 62
=
9 62
14
4 75
+
1 75
=
5 75
4
+
1
=
1 15
15
1 63
+
8 63
=
9 63
1
+
8
=
1 7