3 7/11 : (2/11 +2 4/19) =

Question

3 7/11 : (2/11 +2 4/19) =

Answer 1

3 7/11 = (3*11 + 7)/11 = (33 + 7) / 11 = 40/11

2 4/19 = (2*19 + 4)/19 = (38 + 4)/19 = 42/19

2/11 + 42/19 = 38/209 + 462/209 = 500/209

40/11 : 500/209 = 40/11 * 209/500 = 4 * 19/50 = 2 * 19/25 = 38/25

Answer 2

1,87/3,99 вроде так верно 

Comments

извени я не правелно решил