Question

вычислите (4 6/7:(5/6+8/21)-2 5/13)*8 2/3

Answer 1

(34/7:51/42-31/13)•26/3

(34/7•42/51-31/13)•26/3

(2•2-31/13)•26/3

(4-31/13)•26/3

21/13•26/3

7•2=14