Question

$( frac{19}{12} + frac{11}{18} )/ frac{5}{72}$ помогите плиз очень надо

Answer 1

$\ (frac{19}{12} + frac{11}{18} )/ frac{5}{72} =( frac{19*6}{72} + frac{11*4}{72} )* frac{72}{5} \ =( frac{114+44}{72} )* frac{72}{5}= frac{158}{5} = 31frac{3}{5}$

Answer 2

1) $frac{19}{12}+ frac{11}{18}= frac{19*6+11*4}{72}= frac{158}{72}$
2)$frac{158}{72} / frac{5}{72}= frac{158}{5}=31 frac{3}{5}$