Question

помогите пожалуйста

Answer 1

$frac{1}{5} + 1 frac{5}{6} + 2 frac{7}{10} = frac{1}{5} + frac{11}{6} + frac{27}{10} = frac{6 + 55 + 81}{30} = frac{142}{30} = 4 frac{22}{30} = 4 frac{11}{15}$

Answer 2

=?

Answer 3

4 11/15

Answer 4

Thank you