1). This isn't a mathematical proof or definition, but it turns out that any number
that you can completely write with digits is rational. We will now attempt to write
121 completely, using digits:
121We did it! So we're pretty sure that 121 is probably a rational number.Now we'll check it out according to the official mathematical definition:
2). "A rational number is any number that can be written as the ratio of two whole numbers."
We will now attempt to write 121 as the ratio of two whole numbers:
121/1Again, we've succeeded! So 121 is definitely a rational number.
rational
Rational
No, they are rational.
Integers are rational numbers.
The square root of 121 is 11 which is a rational number and it is also a prime number
No, because 11 squared is 121 which is a rational number
No it is not. It is not irrational either but is an "imaginary" number.
15.125 is a rational number because it can be expressed as a simple fraction, 121/8
4.6 is rational.
10.01 is a rational number
Rational
It is rational number because 2.20% is the same as 0.022 which as a fraction in its lowest terms is 11/500 and only rational numbers can be expressed as fractions.