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분수: 분모 2자리 덧셈4분수7

1
4 72
+
5 72
=
9 72
4
+
5
=
1 8
2
5 75
+
8 75
=
13 75
3
8 49
+
2 49
=
10 49
4
1 62
+
3 62
=
4 62
1
+
3
=
2 31
5
3 78
+
5 78
=
8 78
3
+
5
=
4 39
6
5 35
+
6 35
=
11 35
7
6 42
+
1 42
=
7 42
6
+
1
=
1 6
8
1 47
+
4 47
=
5 47
9
4 62
+
7 62
=
11 62
10
7 19
+
6 19
=
13 19
11
6 12
+
5 12
=
11 12
12
3 35
+
2 35
=
5 35
3
+
2
=
1 7
13
2 32
+
5 32
=
7 32
14
3 25
+
5 25
=
8 25
15
5 27
+
4 27
=
9 27
5
+
4
=
1 3