Question

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2/3 * 7/21 *9/16 =
8/9 : 2 =
4 : 3/4 =
7/20 : 1 5/9 =
6 4/11 : 3 1/2 =
(2/3)do potęgi 3 =
(1 1/3)do potęgi 2=
(1 1/4)do potęgi 3 =

Answer 1

14/63 * 9/16 =126/ 1008 = 63/ 504 = 21/ 168 = 7/ 56

8/9 : 2/1 = 8/9 * 1/2 = 8/ 18 = 4/9 

4/1 : 3/4 = 4/1 * 4/3 = 16/ 3 = 5 1/3 

7/20 : 14/9 = 7/20 * 9/14 = 63/ 280 

70/11 : 7/2 = 70/11 * 2/7 = 140/ 77 = 20/11 = 1 9/11

(2/3) do potegi 3 = 8/ 27 

(1 1/3 ) po pot. 2 = 4/3 do pot. 2 = 16/9

(1 1/4) do pot.3 = 5/4 do pot. 3 =  125 / 64 = 1 61/64