Răspunsuri

2014-05-18T00:56:39+03:00
A) ⇒12/10:1/2=12/10·2/1se simplifica=12/5=2,4
b) 1,(3):2,(6)=(13-1)/9:(26-2)/9=12/9:24/9=12/9·9/24 se simplifica=1/2
c)(5/6+1/2-1/4)·12=aducem la acelasi numitor 12
=(10+6-3)/12·12=13/12·12/1 se simplifica=13