0
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.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoYes it is -27/10, a ratio of 2 integers.
Rome Haffner
yes
Wiki User
∙ 6y agoYes.
Anonymous
Wiki User
∙ 7y agoYes, it is.
Anonymous
yes , 27 is a rational number .
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Is the square root of 27 a rational number?
No
Is the product of a rational number and a rational number a rational number?
yes
Is a rational number multiplied a rational number rational?
Yes.
Is the number 17.5 a rational number?
yes
Which number can be multiplied to a rational number to explain that the product of two rational numbers is rational?
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
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 the square root of 27 a rational number?
No
Is square root of 27 a rational number?
No.
Is 27 a rational number or an irrational number?
If you can completely write a number, using digits, fractions and decimals, then the number is rational. You appear to have done that.
Can 3-27 a rational number?
30
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?
5.4 = 5 2/5 = 27/5 so it is a rational number.
