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분수: 분모 2자리 덧셈3분수7

1
37 28
+
81 28
=
118 28
37
+
81
=
59 14
2
81 62
+
21 62
=
102 62
81
+
21
=
51 31
3
21 28
+
19 28
=
40 28
21
+
19
=
10 7
4
19 53
+
15 53
=
34 53
5
15 35
+
75 35
=
90 35
15
+
75
=
18 7
6
75 19
+
59 19
=
134 19
7
59 49
+
24 49
=
83 49
8
24 46
+
18 46
=
42 46
24
+
18
=
21 23
9
18 16
+
13 16
=
31 16
10
13 27
+
64 27
=
77 27
11
64 26
+
50 26
=
114 26
64
+
50
=
57 13
12
50 24
+
15 24
=
65 24
13
15 75
+
22 75
=
37 75
14
22 11
+
61 11
=
83 11
15
61 37
+
10 37
=
71 37