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ANY number that you can write as a fraction (with whole numbers top and bottom) is rational.
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Is the square root of 441 a rational number?
Yes because 21 is a rational number
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 13.21 repeating rational?
Yes, 13.'21' repeating is a rational number because it can be expressed in the form of a fraction as 436/33
Why is 0.21 a rational number?
0.21 is a rational number because it can be expressed as a fraction in the form of 21/100
Is 4.2 an irrational or rational number?
It is rational because it can be expressed as a fraction which is 21/5
Is 8 over 21 rational?
Yes, any integer over any other integer (except zero) is always a rational number.
Is 0.36 rational or irrational?
Rational.
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 21 over the square root of 4 a rational or irrational?
It is equal to 21/2 which is a rational number
Is the square root of 441 a rational number?
Yes because 21 is a rational number
Is 21 a rational or irrational number?
21 is a rational number.
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 21 over 3 a rational or irrational number?
21/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is 21 a rational?
Yes. Any whole number is rational. An irrational number is one that goes on forever without repeating, like √2=1.414213...
Is 10.5 a rational number?
Yes because it can be expressed as a fraction in the form of 21/2
Is 13.21 repeating rational?
Yes, 13.'21' repeating is a rational number because it can be expressed in the form of a fraction as 436/33
Why is 0.21 a rational number?
0.21 is a rational number because it can be expressed as a fraction in the form of 21/100
