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No, it is always true

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โˆ™ 2017-02-17 13:15:56
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Q: Is it sometimes true when the sum of two rational numbers are rational?
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Related questions

When adding two rational numbers with different signs the sum will be zero Is this aways sometimes or never true?

sometimes true (when the rational numbers are the same)


What is always true about the sum of two rational numbers?

It is a rational number.


Is the sum of two rational numbers sometimes zero?

Yes.


Is the sum of two or more rational numbers is it rational or irrational?

The sum of two rational numbers is rational.From there, it follows that the sum of a finite set of rational numbers is also rational.


What is the sum of the rational numbers?

The sum of any finite set of rational numbers is a rational number.


Is the sum of two rational numbers is it rational or irrational?

Such a sum is always rational.


The sum of two rational numbers is a rational number?

Always true. (Never forget that whole numbers are rational numbers too - use a denominator of 1 yielding an improper fraction of the form of all rational numbers namely a/b.)


When adding two negative rational numbers the sum will be negative sometimes never always?

Never.


Are the sum of two rational numbers rational or irrational?

They are always rational.


Is the sum of a rational number irrational?

No - the sum of any two rational numbers is still rational:


How do you know that the sum of (-2 34) and 59 rational?

Because both of those numbers are rational. The sum of any two rational numbers is rational.


What is an irrational plus two rational numbers?

Since the sum of two rational numbers is rational, the answer will be the same as for the sum of an irrational and a single rational number. It is always irrational.


Is the sum of two rational numbers a rational number?

Yes, it is.


Is the sum or product of two rational numbers is rational?

Yes, it is.


The sum of two rational numbers is always a rational number?

Yes.


Is the sum of two rational numbers is two rational numbers?

Yes, Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.


Is sum of any 2 rational number is a rational number?

True.


Can you add two rational numbers and get a rational number?

Every time. The sum of two rational numbers MUST be a rational number.


Sum of rational numbers 0f class 8?

find the rational between1and3


What is the sum of three rational numbers?

It's always another rational number.


Which of the following correctly describes the sum of two rational numbers?

It is always rational.


Can you add two irrational numbers to get a rational 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.


Sum of two irrational numbers?

Can be rational or irrational.


Can the sum of two rational numbers be zero?

Yes, it can.


Why does the sum of rational number and irrational numbers are always irrational?

Let your sum be a + b = c, where "a" is irrational, "b" is rational, and "c" may be either (that's what we want to find out). In this case, c - b = a. If we assume that c is rational, you would have: a rational number minus a rational number is an irrational number, which can't be true (both addition and subtraction are closed in the set of rational numbers). Therefore, we have a contradiction with the assumption that "c" (the sum in the original equation) is rational.