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4/5 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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Q: Is four fifths a rational or irrational number?

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It is a rational number.

No it is rational ( all integers are rational)

It is rational and, therefore, real.

The square root of 4 is a whole number, an integer, rational and real.

No because 4/3 is a rational number

3/4 is classified as a rational number.

Integer, rational and irrational numner, real number

Yes Yes, the sum of two irrational numbers can be rational. A simple example is adding sqrt{2} and -sqrt{2}, both of which are irrational and sum to give the rational number 0. In fact, any rational number can be written as the sum of two irrational numbers in an infinite number of ways. Another example would be the sum of the following irrational quantities [2 + sqrt(2)] and [2 - sqrt(2)]. Both quantities are positive and irrational and yield a rational sum. (Four in this case.) The statement that there are an infinite number of ways of writing any rational number as the sum of two irrational numbers is true. The reason is as follows: If two numbers sum to a rational number then either both numbers are rational or both numbers are irrational. (The proof of this by contradiction is trivial.) Thus, given a rational number, r, then for ANY irrational number, i, the irrational pair (i, r-i) sum to r. So, the statement can actually be strengthened to say that there are an infinite number of ways of writing a rational number as the sum of two irrational numbers.

The given four numbers are all rational numbers

Some square roots of whole numbers are integers, some of them are irrational numbers. The square root of four for instance is a rational number, 2. The square root of two however is an irrational number, approximately 1.414211356.

Four fifths IS anumber.

Yes - any number that can be expressed as a fraction (or ratio) is a rational number, even if that number is negative. Expressed as a proper fraction in its simplest form, -0.96 is equal to -24/25 or negative twenty-four twenty-fifths.

Yes, four is a rational number.

4.7 is already a rational number. If you mean as a mixed number, this is equal to 4 7/10 or four and seven tenths.

Four fifths is not a whole number so it is not possible to express it as a whole number.

No. And it is not even an irrational number!

Yes, 3/4 is a rational number

Expressed as a mixed number in its simplest form, 4/5 + 4/5 = 1 3/5 or one and three fifths.

48

12

Four fifths of 10 is 8.

There is no Mixed Number as there is no Whole Number involved.

Yes because any number that can be expressed as a fraction is a rational number

4 is.

nine four fifths