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분수: 분모 2자리 덧셈1분수1

1
1 21
+
9 21
=
10 21
2
9 21
+
7 21
=
16 21
3
7 13
+
1 13
=
8 13
4
1 54
+
3 54
=
4 54
1
+
3
=
2 27
5
3 32
+
4 32
=
7 32
6
4 53
+
7 53
=
11 53
7
7 37
+
1 37
=
8 37
8
1 13
+
8 13
=
9 13
9
3 98
+
4 98
=
7 98
3
+
4
=
1 14
10
4 79
+
3 79
=
7 79
11
5 38
+
1 38
=
6 38
5
+
1
=
3 19
12
1 57
+
4 57
=
5 57
13
4 26
+
7 26
=
11 26
14
7 27
+
5 27
=
12 27
7
+
5
=
4 9
15
5 83
+
2 83
=
7 83