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21/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational Numbers cannot be expressed as a fraction.
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Is 21 over the square root of 4 a rational or irrational?
It is equal to 21/2 which is a rational number
Is 0.21 rational or irrational?
0.21 is a rational number because it can be expressed as a fraction in the form of 21/100
Is 8 over 21 rational?
Yes, any integer over any other integer (except zero) is always a rational number.
What is an irrational number between 4.5 and 4.6?
the square root of 21
What is the square root of 84 simplify?
It is: 2 times the square root of 21 and it's an irrational number
Is 21 over the square root of 4 a rational or irrational?
It is equal to 21/2 which is a rational number
Is 21 a rational or irrational number?
21 is a rational number.
Is 8 over 21 a rational or irrational number?
Any number that is presented as an integer "over" (aka divided by) an integer is automatically a rational number - that's what the definition of a rational number is.
Is the square root of 21 an irrational or a rational number?
irrational
Is 4.2 an irrational or rational number?
It is rational because it can be expressed as a fraction which is 21/5
Is the square root of 21 a rational number?
No. The square root of an integer is either an integer, or an irrational number.
Is 0.36 rational or irrational?
Rational.
Is 21 a rational number?
Yes. Any whole number is rational. An irrational number is one that goes on forever without repeating, like √2=1.414213...
Is 0.21 rational or irrational?
0.21 is a rational number because it can be expressed as a fraction in the form of 21/100
Is 21 out of 71 rational or irrational?
21/71 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is the ratio 21 an integer or an irrational number?
21 is an integer which is also a rational number because it can be expressed as a fraction in the form of 21/1
Can Adding a rational number to an irrational number give you an irrational number?
You wont be able to add a rational number and an irrational number and get a number not in a fraction ( 3 + 22/7) (21/7 + 22/7 = 43/7) So, yes as you see in the example above it made another irrational number.
