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분수: 분모 2자리 덧셈7분수4

1
74 29
+
71 29
=
145 29
74
+
71
=
5 1
2
71 12
+
40 12
=
111 12
71
+
40
=
37 4
3
40 31
+
38 31
=
78 31
4
38 53
+
55 53
=
93 53
5
55 68
+
21 68
=
76 68
55
+
21
=
19 17
6
21 31
+
41 31
=
62 31
21
+
41
=
2 1
7
41 25
+
57 25
=
98 25
8
57 84
+
88 84
=
145 84
9
88 15
+
22 15
=
110 15
88
+
22
=
22 3
10
22 71
+
46 71
=
68 71
11
46 37
+
58 37
=
104 37
12
58 74
+
73 74
=
131 74
13
73 12
+
91 12
=
164 12
73
+
91
=
41 3
14
91 58
+
33 58
=
124 58
91
+
33
=
62 29
15
33 60
+
52 60
=
85 60
33
+
52
=
17 12