Question

Que fração devemos somar a 5/8 para obter 19/12

Answer 1

$\large\boxed{\begin{array}{l}\rm \dfrac{19}{12}-\dfrac{5}{8}=\dfrac{19\cdot8-12\cdot5}{12\cdot8}=\dfrac{152-60}{96}=\dfrac{92\div4}{96\div4}\\\\\sf\dfrac{19}{12}-\dfrac{5}{8}=\dfrac{23}{24}\longrightarrow frac_{\!\!,}\tilde ao\,procurada.\end{array}}$