Question

$( frac{1}{2} + frac{3}{5} ):frac{9}{8} +0,4$

Answer 1

$frac{1}{2} + frac{3}{5}= frac{5+6}{10}= frac{11}{10}$
$frac{11}{10}: frac{9}{8}= frac{11}{10}* frac{8}{9}= frac{11*4}{5*9} = frac{44}{45}$
$frac{44}{45}+0,4= frac{44}{45}+ frac{4}{10}= frac{44}{45}+ frac{2}{5}= frac{44+18}{45} = frac{62}{45}=1 frac{17}{45}$