Răspuns:
a) (17/3 : 21/4): 34/7=(17/3*4/21)34:7=68/63*7/34=2/9
b) (36/13:4/1):(5/26:7/36)=(36/13*1/4):(5/26*36/7)=9/13:90/91
=9/13*91/90=7/10
c) (3 1/2 : 2 1/3):(6:12/19)=(3*2+1/2 : 2*3+1/3):(6/1*19/12)
=(7/2*3/7):(6/1*19/2)=3/2:19/2=3/2*2/19=3/19
Explicație pas cu pas:
/-înseamna supra
*-înseamnă ori
Sper ca team ajutat
