Question

știind că a/b = 5/3 și că a= 5/6 ,aflați valoarea lui B.
Vă rog răspundeți!​

Answer 1

a/b=5/3

a=5/6

5/6/b=5/3

b=5/6:5/3

b=5/6×3/5

b=1/2

Answer 2

$\it \dfrac{a}{b}=\dfrac{5}{3}\\\\\\a=\dfrac{5}{6}\\\\\\\dfrac{\dfrac{5}{6}}{b} =\dfrac{5}{3}\Rightarrow 5\cdot b=\dfrac{5}{6}\cdot 3\Rightarrow5b=\dfrac{5\cdot \not3}{\not 6} \Rightarrow 5b=\dfrac{5}{2}\Rightarrow b=\dfrac{5}{2}:5\Rightarrow \\\\\\b=\dfrac{\not5}{2}\cdot\dfrac{1}{\not5}\Rightarrow \boxed{\it b=\dfrac{1}{2}}$

Răspuns:   $\boxed{\bf b = \dfrac{1}{2} }$