1\8 = 1*125 \ 8*125 = 125\1000 = 0.125
3\8 = 3*125\ 8*125 = 375\1000= 0.375
5\8 = 5*125\8*125 = 625\1000 = 0.625
1\200 = 1*5\ 200*5 = 5\1000= 0.005
3\200 = 3*5 \ 200 *5= 15\1000= 0.015
21\200= 21*5\200 *5 = 110\ 1000= 0.110=0.11
1\125 = 1*8\125*8 = 8\1000= 0.008
4\125=4*8\125*8 = 32\1000= 0.032
11\125 = 11*8\125*8= 88\1000= 0.088