No it's called the vinculum bar
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Probably because they they were Greek words
An improper fraction has a numerator greater than the denominator. When the numerator and denominator are equal, that's called "1."
The numberator does not have to be less than or equal to the denominator in a fraction.If the numerator is less than the denominator, it is a "proper" fraction.If the numerator is equal to the denominator, it is the integer 1.But the numerator can be bigger than the denominator, and it is then called an improper fraction.
It is called the fraction bar.
It is called the numerator. The bottom one is the denominator.