Question

Решите плез. Знайти видсотки, для 6 класса

Answer 1

$5 frac{8}{11}*(6 frac{28}{63}-5 frac{36}{63})= frac{63}{11}*( frac{58}{9}- frac{39}{7})= frac{63}{11}*( frac{406-351}{63})= frac{63}{11}* frac{55}{63}=5 \ \ (20,175+8 frac{5}{8}):1 frac{4}{5} =(20 frac{175}{1000}+8 frac{5}{8}): frac{9}{5}= ( frac{20175}{1000}+ frac{69}{8})* frac{5}{9}= \ \ = frac{20175}{1000}* frac{5}{9} + frac{69}{8}* frac{5}{9}= frac{6725}{3*200}+ frac{23*5}{3*8}= frac{269}{3*8}+ frac{115}{3*8}= frac{384}{24}=16$