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분수: 분모 2자리 덧셈7분수4

1
7 49
+
9 49
=
16 49
2
9 16
+
4 16
=
13 16
3
4 22
+
7 22
=
11 22
4
+
7
=
1 2
4
7 13
+
4 13
=
11 13
5
4 72
+
3 72
=
7 72
6
3 41
+
5 41
=
8 41
7
5 98
+
3 98
=
8 98
5
+
3
=
4 49
8
3 21
+
6 21
=
9 21
3
+
6
=
3 7
9
1 46
+
2 46
=
3 46
10
2 41
+
5 41
=
7 41
11
5 40
+
1 40
=
6 40
5
+
1
=
3 20
12
1 59
+
2 59
=
3 59
13
2 19
+
4 19
=
6 19
14
4 87
+
6 87
=
10 87
15
6 23
+
1 23
=
7 23