Question

Daca a/b=3/10 iar b/c=5/6, aflati a/c.

Answer 1

 [tex]dac\u{a}\;\frac{a}{b}=\frac{3}{10}\;\;atunci\,,\,\,a=\frac{3b}{10}\;,\\ si\;\frac{b}{c}=\frac{5}{6}\;\;deci\;\;c=\frac{6b}{5}\;\;\\ deci:\;\frac{a}{c}=\frac{\frac{3b}{10}}{\frac{6b}{5}}=\frac{3b}{10}\cdot\frac{5}{6b}=1/4[/tex]  .... (s-a simplificat cu ,,b" ; cu 3 si 5 )