Question

2(целых)1//3 (одна третья)-1,8

Answer 1

$2frac{1}{3}-1frac{8}{10}=frac{2-3+1}{3}-frac{1*10+8}{10}=frac{7}{3}-frac{18}{10}=frac{70}{30}-frac{54}{30}=frac{16}{30}=frac{8}{15}$