-210 is a negative, real, rational integer.
Yes because it can be expressed as a fraction in the form of 210/1
210 is an integer and not a fraction. However, it can be expressed in rational form as 210/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.
It is a rational number. It can be written as a fraction.
yes
210 is the 20th triangular number.
Is 12.05 a rational number or irrational number?
1.96 is a rational number
210 is not a fraction or a mixed number. It is a whole number.
It is a rational number, as it can be written as a fraction.
Yes, the sum is always rational.
There is no such thing as a number that is both rational and irrational. By definition, every number is either rational or irrational.