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분수: 분모 2자리 덧셈4분수4

1
4 49
+
2 49
=
6 49
2
2 60
+
1 60
=
3 60
2
+
1
=
1 20
3
1 54
+
3 54
=
4 54
1
+
3
=
2 27
4
3 70
+
1 70
=
4 70
3
+
1
=
2 35
5
1 16
+
2 16
=
3 16
6
2 80
+
1 80
=
3 80
7
1 38
+
4 38
=
5 38
8
4 43
+
2 43
=
6 43
9
2 29
+
5 29
=
7 29
10
5 13
+
4 13
=
9 13
11
4 24
+
2 24
=
6 24
4
+
2
=
1 4
12
2 57
+
1 57
=
3 57
2
+
1
=
1 19
13
9 11
+
2 11
=
11 11
9
+
2
=
1 1
14
2 20
+
8 20
=
10 20
2
+
8
=
1 2
15
8 81
+
2 81
=
10 81