Question

вычислити 1)(4 1/2 -0,7)*(1,85+3/20)

Answer 1

$( frac{9}{2}- frac{7}{10})*( frac{185}{100}+ frac{3}{20})=frac{45-7}{10}* frac{185+15}{100}= frac{38}{10} * frac{200}{100} = frac{19}{5} *2= frac{38}{5} =7 frac{3}{5}$