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What are Rational and Irrational Numbers?
Before we discuss rational and irrational numbers, let’s define first what integers are.
Take a look at this number line. A number line is a straight line with numbers place at equal interval or segments along its length. And that numbers we see in a number line is what we call the integer. On the right side of 0 is the positive integer and on the left side is the negative integer. So a proper definition of integer is that integer is like a whole number but includes negative numbers.
So that’s the quick review of integers. Now let’s discuss what rational number is.
A rational number is a number that can be expressed as a fraction in the form p by q (p/q) where p and q are integers and q is not equal to zero. The fractions ½, ¾ or -7/12 are some examples of rational numbers. Noticed, that the numerator and denominator are integers and the denominator is not equal to zero.
Enjoy this video about Rational and Irrational Numbers.
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