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분수: 분모 2자리 덧셈4분수8

1
4 80
+
1 80
=
5 80
4
+
1
=
1 16
2
7 51
+
2 51
=
9 51
7
+
2
=
3 17
3
2 12
+
9 12
=
11 12
4
9 41
+
3 41
=
12 41
5
3 11
+
1 11
=
4 11
6
4 71
+
5 71
=
9 71
7
5 50
+
1 50
=
6 50
5
+
1
=
3 25
8
1 45
+
2 45
=
3 45
1
+
2
=
1 15
9
2 56
+
4 56
=
6 56
2
+
4
=
3 28
10
7 14
+
3 14
=
10 14
7
+
3
=
5 7
11
3 11
+
2 11
=
5 11
12
2 22
+
9 22
=
11 22
2
+
9
=
1 2
13
9 40
+
5 40
=
14 40
9
+
5
=
7 20
14
5 44
+
2 44
=
7 44
15
2 49
+
4 49
=
6 49