It is written as 5.5 in decimal form.
Five hundredths written as a decimal is 0.05 or .05.
Seven point five written as in decimal form is 7.5
Five and eleven hundredths can be written as 5.11 in decimal form.
0.05
five-hundredths = 0.05
4/5 as a decimal is 0.8
2.5
5.13
2.05
0.5555 repeating
0.05