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분수: 분모 2자리 덧셈4분수2

1
4 20
+
6 20
=
10 20
4
+
6
=
1 2
2
6 29
+
2 29
=
8 29
3
2 57
+
1 57
=
3 57
2
+
1
=
1 19
4
4 81
+
3 81
=
7 81
5
3 46
+
9 46
=
12 46
3
+
9
=
6 23
6
9 18
+
1 18
=
10 18
9
+
1
=
5 9
7
1 65
+
4 65
=
5 65
1
+
4
=
1 13
8
4 51
+
2 51
=
6 51
4
+
2
=
2 17
9
1 22
+
9 22
=
10 22
1
+
9
=
5 11
10
9 33
+
3 33
=
12 33
9
+
3
=
4 11
11
2 63
+
6 63
=
8 63
12
6 58
+
1 58
=
7 58
13
2 11
+
3 11
=
5 11
14
2 31
+
4 31
=
6 31
15
4 82
+
2 82
=
6 82
4
+
2
=
3 41