always!
Rational numbers can always be expressed as fractions.
If you consider terminating decimals as ones that end in repeating 0s, then the answer is "always".
Sometimes. A rational number is any number that can be written in the form p/q where p and q are integers but q not = 0. So 3 is a natural number and a rational number because it can be written as 3/1. But 1/3 is a rational number only because it will not reduce to a natural (whole) number.
All integers are rational numbers, but not all rational numbers are integers.2/1 = 2 is an integer1/2 is not an integerRational numbers are sometimesintegers.
always!
The square of a rational number can be either rational or irrational. However, the square of an irrational number is always irrational.
Rational numbers can always be expressed as fractions.
It is always true.
If you consider terminating decimals as ones that end in repeating 0s, then the answer is "always".
Sometimes. (pi) is non-terminating and irrational. 0.33333... non-terminating is 1/3 , which is rational.
No.A rational times an irrational is never rational. It is always irrational.
Any and every rational number.
always
Sometimes. A rational number is any number that can be written in the form p/q where p and q are integers but q not = 0. So 3 is a natural number and a rational number because it can be written as 3/1. But 1/3 is a rational number only because it will not reduce to a natural (whole) number.
All integers are rational numbers, but not all rational numbers are integers.2/1 = 2 is an integer1/2 is not an integerRational numbers are sometimesintegers.
Never.