Question

daca a\b=3\4 atunci a\2b

Answer 1

$\dfrac{a}b} = \dfrac{3}4} \Rightarrow \dfrac{2a}{2b} = \dfrac{3}{4} \Rightarrow 2\cdot \dfrac{a}{2b} = \dfrac{3}{4} \Rightarrow \dfrac{a}{2b} = \dfrac{ \dfrac{3}{4}}{2} \Rightarrow \dfrac{a}{2b} = \dfrac{3}{4\cdot 2} \Rightarrow \\ \\ \Rightarrow \boxed{\dfrac{a}{2b} = \dfrac{3}{8} }$