\(\eqalign{
& a)\,\,0,32 = {{32} \over {100}} = {{8.4} \over {25.4}} = {8 \over {25}} \cr
& b)\,\, - 0,124 = {{ - 124} \over {1000}} = {{ - 31.4} \over {250.4}} = {{ - 31} \over {250}} \cr
& c)\,\,1,28 = {{128} \over {100}} = {{32.4} \over {25.4}} = {{32} \over {25}} \cr
& d)\,\, - 3,12 = {{ - 312} \over {100}} = {{ - 78.4} \over {25.4}} = {{ - 78} \over {25}} \cr} \)
