Twelve and seventy-five hundredths = 12 .75
12 hundredths = 0.12 in decimal
9 and 12 hundredths in decimal notation = 9.12
12 and 7 hundredths = 12.07
12 hundredths = 12/100 = 0.12
It is: 11 and 12/100 = 11.12 as a decimal
11 and 12/100 as a decimal = 11.12
0.12
0.12
0.12
1.12
If you mean 11 and 12/100 then as a decimal it is 11.12