Anorexia is a very dangerous mental and physical disorder where a person starves themselves and exercises constantly to lose weight. Size zero is a dress / clothing size. A person who is naturally thin can be a size zero. It does not mean someone is anorexic just because they are a size zero. Also, an anorexic can be smaller or larger than a size zero.
Zero
Zero. In general, the difference between any number and itself is zero.
There is no difference in value between "equal" fractions: the difference is zero.
infinite
zero
Nought is just another word for zero.
the difference between two equal fractions is zero.
The difference between anything and itself is zero.
Zero.
the difference is that one is the letter o and the other is a zero
Zero
Zero.