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분수: 분모 2자리 덧셈4분수9

1
4 91
+
1 91
=
5 91
2
1 42
+
3 42
=
4 42
1
+
3
=
2 21
3
3 74
+
8 74
=
11 74
4
8 85
+
4 85
=
12 85
5
4 19
+
8 19
=
12 19
6
8 63
+
5 63
=
13 63
7
5 20
+
8 20
=
13 20
8
2 18
+
1 18
=
3 18
2
+
1
=
1 6
9
1 17
+
5 17
=
6 17
10
5 82
+
2 82
=
7 82
11
2 88
+
3 88
=
5 88
12
3 39
+
9 39
=
12 39
3
+
9
=
4 13
13
9 82
+
1 82
=
10 82
9
+
1
=
5 41
14
1 45
+
4 45
=
5 45
1
+
4
=
1 9
15
4 45
+
7 45
=
11 45