Question

Ajutor, dau coroană ​

Answer 1

Răspuns:

Explicație pas cu pas:

a) [(-1/7)·(-3/5)]/[3/7·(-5/6)]=(3/7·5):(-5·3/7·6)=(3/7·5)·(7·6)/(-5·3)=(3·7·6)/[7·5·3·(-5)]=6/(-5·5)=-6/25

b) -2 19/49/-5 4/7=(-117/49):(-39/7)=(-117/49)·(-7/39)=(117·7)/(49·39)= 117/(7·39)=3/7

c) +72/24/(-32/12)= +72/24·(12/-32)=(72·12)/[24·(-32)]=(3·12)/(-32)=(3·3)/(-8)= -9/8          

d) (-35/108)/(385/-324)=(-35/108):(385/-324)=(-35/108)·(-324/385)=(35·324)/(108·385)=324/(108·11)=3/11