Answer:

1. Fraction in arithmetic is a number expressed as a quotient, in which a numerator is divided by a denominator.

2. Numerator, Vinculum and Denominator.

3. The Numerator the number above the line in a common fraction showing how many of the parts indicated by the denominator are taken.

4. In math, a denominator can be defined as the bottom number in a fraction that shows the number of equal parts an item is divided into. It is the divisor of a fraction.

5. To write fractions as numerals, do it with the numerator above the denominator, separated by a line.