Question

$\frac{1}{7} + \frac{1}{4.5} =$1/7 + 1/4,5 =

Answer 1

$\frac{1}{7} + \frac{1}{4.5} = \frac{4.5+7}{31.5} = \frac{11.5}{31.5}=$
$=\frac{2.3}{6.3}=\frac{23}{63}$