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분수: 분모 2자리 덧셈4분수7

1
4 78
+
5 78
=
9 78
4
+
5
=
3 26
2
5 78
+
4 78
=
9 78
5
+
4
=
3 26
3
4 85
+
5 85
=
9 85
4
5 29
+
3 29
=
8 29
5
3 46
+
7 46
=
10 46
3
+
7
=
5 23
6
7 22
+
6 22
=
13 22
7
6 31
+
2 31
=
8 31
8
2 65
+
3 65
=
5 65
2
+
3
=
1 13
9
3 72
+
8 72
=
11 72
10
8 36
+
3 36
=
11 36
11
9 53
+
6 53
=
15 53
12
2 63
+
4 63
=
6 63
2
+
4
=
2 21
13
4 73
+
8 73
=
12 73
14
3 20
+
8 20
=
11 20
15
8 30
+
3 30
=
11 30