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분수: 분모 2자리 덧셈4분수7

1
4 79
+
3 79
=
7 79
2
9 23
+
1 23
=
10 23
3
3 21
+
7 21
=
10 21
4
7 27
+
2 27
=
9 27
7
+
2
=
1 3
5
2 51
+
3 51
=
5 51
6
3 57
+
2 57
=
5 57
7
2 12
+
1 12
=
3 12
2
+
1
=
1 4
8
1 59
+
2 59
=
3 59
9
2 64
+
4 64
=
6 64
2
+
4
=
3 32
10
4 22
+
5 22
=
9 22
11
5 61
+
1 61
=
6 61
12
4 11
+
3 11
=
7 11
13
3 20
+
6 20
=
9 20
14
6 13
+
8 13
=
14 13
15
8 44
+
5 44
=
13 44