Irrational means not rational. So, to understand irrational numbers, you need to first understand A rational number is a number that can be made by dividing two You can write any rational number as a fraction. is a rational number because it can be written as .
3.25 is a rational number because it can be written as .
1.54 is a rational number because it can be written as .
Irrational numbers are numbers that are not rational. So, an irrational number is any number that cannot be made by dividing two integers. Irrational numbers cannot be written as fractions. Irrational numbers written as decimals never terminate and never repeat.
𝜋 the number is an irrational number because it cannot be written as a fraction and it does not terminate or repeat when written as a decimal. 𝜋pi
is 3.1415926535... Euler's number, is an irrational number because it cannot be written as a fraction and it does not terminate or repeat when written as a decimal. e
is 2.7182818284... 
