A decimal is a fraction that has a denominator of 100. sometimes, always, or never?

Question

A decimal is a fraction that has a denominator of 100. sometimes, always, or never? I'm using odesseyware for my math class and I don't know this

Answer 1

sometimes is the answer

0.27=27/100

0.89=89/100

0.8=8/10=80/100

0.125=125/1000 (which can be written as 12.5/100 or (12  1/2)/100)

0.636363...=7/11

0.729729729...=27/37

1.414213562...=√2