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분수: 분모 2자리 덧셈1분수3

1
13 51
+
21 51
=
34 51
13
+
21
=
2 3
2
21 24
+
34 24
=
55 24
3
34 75
+
68 75
=
102 75
34
+
68
=
34 25
4
68 39
+
64 39
=
132 39
68
+
64
=
44 13
5
64 75
+
12 75
=
76 75
6
12 98
+
64 98
=
76 98
12
+
64
=
38 49
7
64 25
+
20 25
=
84 25
8
20 32
+
33 32
=
53 32
9
39 43
+
31 43
=
70 43
10
31 35
+
86 35
=
117 35
11
86 17
+
45 17
=
131 17
12
45 31
+
24 31
=
69 31
13
24 43
+
93 43
=
117 43
14
93 22
+
63 22
=
156 22
93
+
63
=
78 11
15
63 22
+
28 22
=
91 22