One tenth of one hundred is ten.
nineteen is not equal to the sum of one and one tenth of one hundred
One hundred and one tenth in standard form is 100.1
"One hundred and one" is not a number. It is either "one hundred one" or "one hundred and one tenth" where "tenth" could be anything fractional.The number one hundred one is written as 101.
A hundred thousandths. Although one tenth would be easier.
One hundred thousandths reduces to one tenth.
One hundred million
4.10 = four and one tenth (or four and ten hundredths.