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분수: 분모 2자리 덧셈4분수2

1
4 20
+
1 20
=
5 20
4
+
1
=
1 4
2
1 51
+
2 51
=
3 51
1
+
2
=
1 17
3
2 93
+
4 93
=
6 93
2
+
4
=
2 31
4
4 42
+
7 42
=
11 42
5
5 77
+
4 77
=
9 77
6
4 73
+
1 73
=
5 73
7
1 28
+
3 28
=
4 28
1
+
3
=
1 7
8
3 94
+
5 94
=
8 94
3
+
5
=
4 47
9
4 45
+
7 45
=
11 45
10
7 42
+
1 42
=
8 42
7
+
1
=
4 21
11
1 36
+
6 36
=
7 36
12
6 30
+
9 30
=
15 30
6
+
9
=
1 2
13
9 50
+
1 50
=
10 50
9
+
1
=
1 5
14
1 61
+
6 61
=
7 61
15
6 56
+
1 56
=
7 56
6
+
1
=
1 8