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분수: 분모 2자리 덧셈1분수2

1
1 21
+
3 21
=
4 21
2
3 48
+
5 48
=
8 48
3
+
5
=
1 6
3
5 74
+
2 74
=
7 74
4
2 22
+
1 22
=
3 22
5
1 34
+
2 34
=
3 34
6
2 20
+
3 20
=
5 20
2
+
3
=
1 4
7
5 30
+
6 30
=
11 30
8
6 61
+
9 61
=
15 61
9
4 49
+
6 49
=
10 49
10
6 34
+
4 34
=
10 34
6
+
4
=
5 17
11
4 45
+
2 45
=
6 45
4
+
2
=
2 15
12
2 54
+
3 54
=
5 54
13
3 74
+
7 74
=
10 74
3
+
7
=
5 37
14
7 54
+
1 54
=
8 54
7
+
1
=
4 27
15
1 15
+
4 15
=
5 15
1
+
4
=
1 3