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분수: 분모가 다른 덧셈3분수3

1
3 3
+
7 5
=
36 15
3
+
7
=
12 5
2
7 5
+
9 3
=
66 15
7
+
9
=
22 5
3
9 3
+
1 7
=
66 21
9
+
1
=
22 7
4
1 7
+
6 4
=
46 28
1
+
6
=
23 14
5
6 4
+
4 6
=
26 12
6
+
4
=
13 6
6
4 6
+
3 9
=
18 18
4
+
3
=
1
7
3 9
+
4 6
=
18 18
3
+
4
=
1
8
6 7
+
1 4
=
31 28
9
1 4
+
3 6
=
9 12
1
+
3
=
3 4
10
3 6
+
5 5
=
45 30
3
+
5
=
3 2
11
5 5
+
2 3
=
25 15
5
+
2
=
5 3
12
1 3
+
6 2
=
20 6
1
+
6
=
10 3
13
6 2
+
7 5
=
44 10
6
+
7
=
22 5
14
7 5
+
4 8
=
76 40
7
+
4
=
19 10
15
4 8
+
3 2
=
16 8
4
+
3
=
2