Răspunsuri

  • Utilizator Brainly
2014-11-07T13:21:40+02:00
Ma= (a+b+c)/3...... = (15/4+1/2+19/4)/3 {aducem fractiile de la numarator la acelasi numitor, adica la 4}= (15/4+2/4+19/4)/3= (36/4)/3= 9/3=3
1 5 1
2014-11-07T14:41:48+02:00
15² 19  
4       2     4 

15219
 4     4     4
 36 
÷ 3
  4     1
36 
× 1
 4     3 
12 = 3    Sper sa intelegi cum am facut 
 4