25,10,4,8/5,_,_,_

pleaqse help me how to solve this

The rule is to multiply by 2/5

25 * 2/5 = 10

10 * 2/5 = 4

4 * 2/5 = 8/5

8/5 * 2/5 = 16/25

16/25 * 2/5 = 32/125

32/125 * 2/5 = 64/625

Hence the series will be 25, 10, 4, 8/5, 16/25, 32/125, 64/625