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분수: 분모가 다른 덧셈4분수7

1
1 2
+
7 5
=
19 10
2
5 3
+
1 6
=
11 6
3
1 6
+
3 9
=
9 18
1
+
3
=
1 2
4
3 9
+
4 5
=
51 45
3
+
4
=
17 15
5
4 5
+
5 3
=
37 15
6
5 3
+
4 5
=
37 15
7
6 5
+
4 4
=
44 20
6
+
4
=
11 5
8
4 4
+
2 6
=
16 12
4
+
2
=
4 3
9
6 2
+
4 3
=
26 6
6
+
4
=
13 3
10
3 4
+
5 7
=
41 28
11
5 7
+
4 9
=
73 63
12
4 9
+
7 2
=
71 18
13
7 2
+
1 9
=
65 18
14
1 3
+
4 5
=
17 15
15
4 5
+
2 4
=
26 20
4
+
2
=
13 10