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분수: 분모 2자리 덧셈3분수3

1
3 31
+
4 31
=
7 31
2
5 41
+
1 41
=
6 41
3
1 15
+
3 15
=
4 15
4
3 37
+
2 37
=
5 37
5
2 40
+
8 40
=
10 40
2
+
8
=
1 4
6
8 21
+
1 21
=
9 21
8
+
1
=
3 7
7
1 90
+
6 90
=
7 90
8
6 19
+
3 19
=
9 19
9
3 44
+
5 44
=
8 44
3
+
5
=
2 11
10
5 22
+
9 22
=
14 22
5
+
9
=
7 11
11
9 21
+
4 21
=
13 21
12
4 84
+
3 84
=
7 84
4
+
3
=
1 12
13
3 84
+
6 84
=
9 84
3
+
6
=
3 28
14
6 24
+
1 24
=
7 24
15
1 20
+
9 20
=
10 20
1
+
9
=
1 2