Hello, iam Micheal Childs, G’day, mate.
Hey there! Are you looking for some info on rational numbers? Well, you’ve come to the right place! Rational numbers are any number that can be expressed as a fraction, with both the numerator and denominator being integers. Pretty cool, right? Let’s dive in and take a closer look at these special numbers.
Is √ 21 A Rational Number? [Solved]
Well, there ya go - 21 ain’t equal to a squared, so a can’t be equal to the square root of 21. So our earlier guess that √21 was rational was wrong - it’s actually irrational.
Integer: A number that is a whole number, either positive or negative.
Prime Number: A number that can only be divided by itself and 1.
Composite Number: A number that can be divided by more than just itself and 1.
Irrational Number: A number that cannot be expressed as a fraction of two integers, such as pi or the square root of 2.
Rational Number: Any number that can be expressed as the ratio of two integers, such as 3/4 or -7/2 .
Decimal Fraction: A rational number written in decimal form, such as 0.75 or -3.14 .
Recurring Decimal Fraction: A rational number written in decimal form with repeating digits, such as 0.(3) or -0.(14).
Terminating Decimal Fraction: A rational number written in decimal form with no repeating digits, such as 0.(25) or -0.(125).
9 . Mixed Number : An integer plus a proper fraction ,such as 3 1/2 or -5 7/8 .
10 . Improper Fraction :A fraction whose numerator is greater than its denominator ,suchas 7/4or-11/9 .
11 . Proper Fraction :A fraction whose numerator is less than its denominator ,such
A rational number is any number that can be written as a fraction, with both the numerator and denominator being whole numbers. So, 21 is a rational number ‘cause it can be written as 21/1. Pretty cool, huh?
