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분수: 분모 2자리 덧셈1분수7

1
1 73
+
2 73
=
3 73
2
2 21
+
5 21
=
7 21
2
+
5
=
1 3
3
5 44
+
1 44
=
6 44
5
+
1
=
3 22
4
9 21
+
3 21
=
12 21
9
+
3
=
4 7
5
3 62
+
1 62
=
4 62
3
+
1
=
2 31
6
1 87
+
3 87
=
4 87
7
3 52
+
1 52
=
4 52
3
+
1
=
1 13
8
6 71
+
1 71
=
7 71
9
1 77
+
6 77
=
7 77
1
+
6
=
1 11
10
6 23
+
4 23
=
10 23
11
4 79
+
2 79
=
6 79
12
2 74
+
1 74
=
3 74
13
1 66
+
3 66
=
4 66
1
+
3
=
2 33
14
7 36
+
8 36
=
15 36
7
+
8
=
5 12
15
8 62
+
1 62
=
9 62