Question

Stiind ca a/b = 0,1(6)/15 si a = (2 1/3 - 2) : 1/3 + 0,(56) * 2 - 0,34 , aflati numarul b.

Answer 1

sper sa inteleg bine : in prima paranteza la a scrie 2 intregi si 1/3 ?

a= ( 7/3-2/1)*3/1 + 56/99*2-34/100
a= (7/3-6/3)*3/1 + 112/99-17/50
a=1/3*3/1 + (5600-1683)/4950
a=1+3917/4950
a= 4950/4950 + 3917/4950
a=8867/4950

a/b=(15/90)/15= 15/90*1/15=1/90

b=a*90 = 8867/4950 *90 = 8867/55