first we gota do the exponents meaning square 4/5 which is 16/25.
now we multiply (125/8) x ( 16/25) = 2000/200 simplyfy that to 10 (2000 goes into 200 10 times evenly)
now finally subtract.
10-9/10 note that 10 can be made into a fraction by writing it as 10/1
10/1 - 9/10 least common deminator is 10
10 goes into 1 10 times, 10 x 10 = 100
10 goes into 10 1 time, 1 x 10 = 10
(100-10)/10 = 90/10 or 9
9 is your answer