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분수: 분모 2자리 덧셈3분수9

1
3 99
+
2 99
=
5 99
2
3 21
+
1 21
=
4 21
3
3 71
+
1 71
=
4 71
4
1 56
+
2 56
=
3 56
5
2 75
+
7 75
=
9 75
2
+
7
=
3 25
6
4 77
+
3 77
=
7 77
4
+
3
=
1 11
7
3 56
+
2 56
=
5 56
8
2 91
+
6 91
=
8 91
9
6 36
+
5 36
=
11 36
10
5 10
+
2 10
=
7 10
11
2 67
+
1 67
=
3 67
12
1 12
+
6 12
=
7 12
13
6 15
+
7 15
=
13 15
14
7 97
+
6 97
=
13 97
15
6 53
+
4 53
=
10 53