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분수: 분모 2자리 덧셈4분수7

1
4 72
+
2 72
=
6 72
4
+
2
=
1 12
2
2 41
+
9 41
=
11 41
3
9 48
+
6 48
=
15 48
9
+
6
=
5 16
4
6 42
+
4 42
=
10 42
6
+
4
=
5 21
5
4 34
+
6 34
=
10 34
4
+
6
=
5 17
6
6 45
+
9 45
=
15 45
6
+
9
=
1 3
7
9 12
+
3 12
=
12 12
9
+
3
=
1 1
8
3 59
+
4 59
=
7 59
9
4 29
+
5 29
=
9 29
10
5 19
+
6 19
=
11 19
11
5 26
+
3 26
=
8 26
5
+
3
=
4 13
12
3 21
+
1 21
=
4 21
13
1 91
+
2 91
=
3 91
14
2 75
+
4 75
=
6 75
2
+
4
=
2 25
15
4 82
+
2 82
=
6 82
4
+
2
=
3 41