A)(2/3*9/10+(1/3)²-2/3):7/9 Б)4/5:8/10:20/2; В)17/20*10/34:5/2; Г)6/7*3/9*28/30;

Question

A)(2/3*9/10+(1/3)²-2/3):7/9
Б)4/5:8/10:20/2;
В)17/20*10/34:5/2;
Г)6/7*3/9*28/30;

Accepted Answer

A)((2/3) * (9/10) +(1/3)^2 - 2/3) / (7/9) = (3/5 + 1/9 – 2/3) / 7/9 = (2/45) * (9/7) = 2/35.
Б)(4/5) / (8/10) / (20/2) = (4/5) * (10/8) / 10 = 1/10.

В)(17/20) * (10/34) / (5/2) = (1/4) * (2/5) = 1/10;
Г)(6/7) * (3/9) * (28/30) = (2/7) * (28/30) = 4/15.

A)(2/39/10+(1/3)²-2/3):7/9 Б)4/5:8/10:20/2; В)17/2010/34:5/2; Г)6/73/928/30;