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분수: 분모 2자리 덧셈4분수2

1
2 84
+
1 84
=
3 84
2
+
1
=
1 28
2
1 72
+
6 72
=
7 72
3
6 55
+
4 55
=
10 55
6
+
4
=
2 11
4
4 18
+
3 18
=
7 18
5
3 48
+
4 48
=
7 48
6
4 28
+
2 28
=
6 28
4
+
2
=
3 14
7
2 38
+
3 38
=
5 38
8
3 84
+
2 84
=
5 84
9
2 25
+
6 25
=
8 25
10
6 37
+
2 37
=
8 37
11
6 72
+
2 72
=
8 72
6
+
2
=
1 9
12
3 42
+
1 42
=
4 42
3
+
1
=
2 21
13
1 50
+
4 50
=
5 50
1
+
4
=
1 10
14
4 13
+
2 13
=
6 13
15
2 98
+
4 98
=
6 98
2
+
4
=
3 49