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Can a rational number be multiplied by an irrational number and equal a rational number?
Only if the rational number is 0.
Can a rational number plus an irrational number equal a rational number?
No, never.
What is 0.6666 as a rational number?
The number 0.6666 is a rational number. Expressed as a fraction it is equal to 6666/10000.
Can a number be a rational number and equal zero?
yes
Is 100 a rational number?
Yes, 100 is a rational number.A rational number is any number that can be expressed as the quotient a/b of two integers, with the denominator b not equal to zero. Since b may be equal to 1, every integer is a rational number.
Does a rational number times an irrational number equal a rational number?
No. If the rational number is not zero, then such a product is irrational.
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.
What is the rational number that is equal to its reciprocal?
1
What is the rational number that is equal to its negative?
Zero
Is 3.245245245 a rational number?
Assuming that the number ends at that third 5, yes, the number is rational - as it has a defined end-point. If the number is equal to 3.245 recurring, then no, the number will not be rational.
Can the subtraction of a rational and an irrational number equal to an irrational number?
No.
What is a requirement for a number to a rational number?
The requirement for a number to be a rational number is that it can be expressed as a ratio of two integers, where the denominator does not equal zero.
