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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

2.7 completely, using digits:

2.7We did it! So we're pretty sure that 2.7 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 2.7 as the ratio of two whole numbers:

27/10Again, we've succeeded! So 2.7 is definitely a rational number.
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13y ago

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Related Questions

Is 27 a rational number or an irrational number?

Oh, dude, 27 is a rational number. Like, rational numbers are any number that can be expressed as a fraction, and 27 can totally be written as 27/1. So yeah, 27 fits right into that rational number club. Cool, right?


Is 2.7 irrational?

No, it is rational.


Is 27 a real number?

Yes, 27 is a real number. Real numbers include all rational and irrational numbers, and 27 is a rational number because it can be expressed as a fraction, 27/1.


Is 27 an irritational number?

No. 27 is a whole number, and all whole numbers are rational.


Is square root of 27 a rational number?

No.


Is the square root of 27 a rational number?

No, the square root of 27 is not a rational number. A rational number is a number that can be expressed as a fraction where both the numerator and denominator are integers. The square root of 27 is an irrational number because it cannot be expressed as a simple fraction and its decimal representation goes on indefinitely without repeating.


Can 3-27 a rational number?

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Is -27 a whole rational number and a integer?

Yes.


Is 27 a rational or irrational number?

If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have accomplished that.


Suppose that x is a number between 2 and 27 For how many different values would be rational number?

There are infinitely many rational numbers between 2 and 27.


Is the square root of 729 rational?

The square root of 729 is 27.Yes, it is a rational number because 27 can be written as simple fraction, 27/1.


Is 5.4 an irrational or rational number?

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