Rational & Irrational Numbers
Rational numbers can be written as a fraction of two integers (including all terminating and repeating decimals); irrational numbers cannot — their decimals never terminate or repeat (pi, square root of 2).
The number families nest: whole numbers sit inside integers, integers inside rationals, and rationals plus irrationals together make the real numbers. To order mixed lists, convert everything to decimal form first.
PlayPrepHQ study notes are written and reviewed against primary exam sources. How we create & review content →