Question

. Вычислите: 3 5 2 5 8 9 7 5 7 . 2 6) 8 30 5.Соч​

Answer 1

((3/5•5/9:2/7):(5/8•7/30))•1 2/5= ((1/8•5/3•7/2):(1/8:7/6))•2/5

(35/48:7/48)•2/5

(35/48•48/7)•2/5

5•2/5=2