To write twelve and three tenths as a decimal, write the number twelve as a whole number to the left of the decimal place and three tenths as three to the right of the decimal place. It appears as 12.3
You write fourteen and three tenths in decimal form as: 14.3
To write nine tenths as a decimal, it looks like this: .9
Three-tenths or 3/10 written as a decimal is 0.3
3.3
That is 3.3
Four and three tenths is 4.3
Three tenths.
3.3
.3
.3
3.4