Question

5*10^-1+2*10^-2+1*10^-4

Answer 1

$5*10^{-1}+2*10^{-2}+1*10^{-4}=5* frac{1}{10}+2* frac{1}{100}+1* frac{1}{10000}= frac{1}{2}+ frac{1}{50}+$$frac{1}{10000}= frac{5000+200+1}{10000}= frac{5201}{10000} =0,5201$