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No. A number cannot be closed under addition: only a set can be closed. The set of rational numbers is closed under addition.
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∙ 9y ago
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∙ 6y agoYes.
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Are rational numbers closed under division multiplication addition or subtraction?
Rational numbers are closed under addition, subtraction, multiplication. They are not closed under division, since you can't divide by zero. However, rational numbers excluding the zero are closed under division.
Are rational numbers closed under addition?
Yes.
Why does a rational number plus a rational number or a rational number multiplied by a rational number equal to rational number?
The way in which the binary functions, addition and multiplication, are defined on the set of rational numbers ensures that the set is closed under these two operations.
Are the set of rational numbers closed under addition?
Yes, the set is closed.
Is the set of rational numbers closed under addition?
Yes, it is.
Can you add two rational numbers and get an irrational number?
No. The set of rational numbers is closed under addition (and multiplication).
Are rational numbers closed under division multiplication addition or subtraction?
Rational numbers are closed under addition, subtraction, multiplication. They are not closed under division, since you can't divide by zero. However, rational numbers excluding the zero are closed under division.
Are the rational numbers closed under addition?
Yes.
Can rational numbers be closed under addition?
Yes, they can.
Are rational numbers closed under addition?
Yes.
Why does a rational number plus a rational number or a rational number multiplied by a rational number equal to rational number?
The way in which the binary functions, addition and multiplication, are defined on the set of rational numbers ensures that the set is closed under these two operations.
Which number produces a rational number when added to 0.5?
Since the set of rational numbers is closed under addition, any rational number added to 0.5 will total another rational number.
Are the set of rational numbers closed under addition?
Yes, the set is closed.
Are rational numbers closed under subtraction?
Yes. They are closed under addition, subtraction, multiplication. The rational numbers WITHOUT ZERO are closed under division.
Is the set of rational numbers closed under addition?
Yes, it is.
Are rational numbers are closed under addition subtraction division or multiplication?
The set of rational numbers is closed under all 4 basic operations.
Is the sum of rational numbers always rational?
Yes. In general, the set of rational numbers is closed under addition, subtraction, and multiplication; and the set of rational numbers without zero is closed under division.
