Operazioni con le frazioni
somme e differenze
1 1
2+5
2 3 1
3+5
3 2 1
4+3
4 1
2 1
5
+9
5
2 22
7
−1
7
3 1
6
+17
6
3
3 17
8−1
8 2 25
6+5
6 5 11
10 −1
10 1
4 78
11
−1
11
7 46
9
−1
9
5 21
4
−1
4
5
5 12
7−9
7 3
7 11
5−8
5 3
5 11
3−7
3 4
3
6 21
5
−7
5
14
5 31
4
+3
4
17
2 2
26
+11
26
1
2
7 8−2
7 54
7 4 + 2
5 22
5 4−1
3 11
3
8 2 + 8
9
26
9 7−14
3
7
3 8−34
5
6
5
9 7−7
6 35
6 8−3
2 13
2 25
6−4 1
6
10 17
2
−6; 5
2 5 + 2
3
; 17
3 4−11
3
1
3
11 6
7+12
7+10
7 4 11
13 +20
13 +8
13 3 18
5+8
5+4
5 6
12 3
2
+5
2
−1
2
7
2 3
2
+2
5
−1
10
9
5 10
9
−1
2
+1
18
2
3
13 11
6−7
30 −1
5 7
5 3
4+7
6−11
12 1 3
5+3
10 −7
30 2
3
14 6
5
+4
15
−1
3
17
15 5
21
−1
7
+1
3
3
7 3
7
−1
5
+2
35
2
7
15 1 + 29
12 −3
2 23
12 3
5+ 2 −7
10 19
10 3−1
4−1
8 21
8
16 4 + 1
5
−8
15
11
3 5−1
2
−5
4
13
4 2−3
100
−4
25
181
100
17 1,5 −1
2+ 0, 3
� 4
3 4 + 1
5+ 0,1 43
10 0, 5
�+1
3−1
4
+ 0,38
�
37
36
18 �13
12 +7
15 −4
5�+ 1 −�3
10 +21
8−2� 33
40
19 7
6−�5
9+1
2�+5
2+ 3 −�2−1
6+11
8+4
3� 77
72
