Rational numbers can always be expressed as fractions.
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Sometimes. The number '4' is real and rational. The number 'pi' is real but not rational.
always!
Rational numbers are numbers that can be written as a fraction. Irrational Numbers cannot be expressed as a fraction. Any number that is a fraction is not an integer, but rational.
I dont know nerdsI sometimes wish that I knew only nerds.The answer is rational.
If you consider terminating decimals as ones that end in repeating 0s, then the answer is "always".