Question

Va rog sa ma ajutati la urmatorul exercitiu:daca a supra b=2,(6),determinati numarul rational pozitiv b in cazurile :a)a=0,8,b)a==1,(3),c)a=0,(6),d)a=3,2,dau coroana

Answer 1

a/b=26-2/9=24/9=8/3⇒ b = 3a/8

a) a=8/10=4/5 ⇒ b=3/8 *4/5=12/40=3/10=0,3
b) a=13-1/9=12/9=4/3⇒ b= 3/8 * 4/3 = 12/24=1/2=0,5
c) a=6/9=2/3⇒ b= 3/8 * 2/3=6/24=1/4=0,25
d) a=32/10=16/5⇒ b=3/8 * 16/5 = 3/1 * 2/5=6/5 = 1,2