0.8 with a little line over the eight for the infinitive version. OR you can divide 9 into 8 by a calculator. Your pick :)
0.88889
0.4444444444444444444444444444444444444444444.....
9/8 = 1.125
1.142657 repeating
.7 (repeating)
.068
.88888888888888888889
14/8 = 1.75
6.444444444444444
two over nine as a decimal = 2/9 = 0.2222
Three over eight as a decimal is 0.375
one over eight to a decimal = 0.125