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분수: 분모가 다른 덧셈2분수7

1
9 7
+
3 4
=
57 28
2
4 3
+
1 6
=
9 6
4
+
1
=
3 2
3
9 2
+
3 5
=
51 10
4
5 5
+
1 9
=
50 45
5
+
1
=
10 9
5
8 4
+
4 8
=
20 8
8
+
4
=
5 2
6
8 4
+
2 9
=
80 36
8
+
2
=
20 9
7
2 5
+
1 3
=
11 15
8
1 3
+
5 9
=
8 9
9
5 9
+
4 4
=
56 36
5
+
4
=
14 9
10
4 4
+
1 9
=
40 36
4
+
1
=
10 9
11
1 9
+
5 5
=
50 45
1
+
5
=
10 9
12
5 5
+
9 4
=
65 20
5
+
9
=
13 4
13
9 4
+
5 5
=
65 20
9
+
5
=
13 4
14
5 5
+
1 3
=
20 15
5
+
1
=
4 3
15
1 2
+
6 6
=
9 6
1
+
6
=
3 2