Matematică, întrebare adresată de B612R, 9 ani în urmă

Ajutor! Am nevoie pe luni dau 99 puncte!!!!!

Anexe:

Răspunsuri la întrebare

Răspuns de CurrerBell
1
9.
5/9 + 3/9 -4/9 = 4/9

4/6 + 2/6 -5/6 + 1/6= 2/6 = 1/3 

8/8 -5/8 +1/8 + 2/8 = 6/8 = 3/4 

10/10 - 5/10 - 2/10 + 6/10 = 9/10 

8/10 - 6/10 +3/10 = 5/10 = 1/2

5/7 +1/7 -4/7 +2/7 = 4/7 

10 .

7/8 - x = 4/8     x = 7/8 - 4/8 = 3/8 

x-6/10 = 3/10    x = 3/10 + 6/10 = 9/10 

4/6 + x = 9/6     x = 9/6 - 4/6 = 5/6

x - 7/10 =1/10   x = 1/10 + 7/10 = 8/10 

9/9 + 3/9 - x = 6/9    12/9 - x = 6/9   x =  12/9 - 6/9 = 6/9

8/9 - x +3/9 = 4/9    11/9 - x = 4/9     x = 11/9 - 4/9 =  7/9

x + 4/8 -2/8 =5/8    x + 2/8 = 5/8      x = 5/8 - 2/8 = 3/8

8/6 - 4/6 -x =1/6    4/6 - x = 1/6        x = 4/6 - 16 = 3/6  


Răspuns de Deeachu
0
9. 5/9 + 3/9 - 4/9 = 4/9
4/6 + 2/6 + 1/6 = 7/6
8/8 - 5/8 + 1/8 + 2/8 = 6/8
10/10 - 5/10 - 2/10 + 6/10 = 9/10
8/10 - 6/10 + 3/10 = 5/10
5/7 + 1/7 - 4/7 + 2/7 = 4/7

10. 7/8 - 3/8 = 4/8
9/9 + 3/9 - 6/9 = 6/9
9/10 - 6/10 = 3/10
8/9 - 7/9 + 3/9 = 4/9
4/6 + 5/6 = 9/6
3/8 + 4/8 - 2/8 = 5/8
8/10 - 7/10 = 1/10
8/6 - 4/6 - 3/6 = 1/6
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