What's the relationship between rational numbers and irrational

Rational number can be represented as fraction which has prime numerator and denominator. Rational numbers are either limited or the pattern after some decimals repeats forever. For example

9/7=1.285714285714285714. As you see the pattern repeats limitless. Though Rational numbers can be limited Irrational numbers are always endless.

Often this values/constants are found in geometry like π=3.14, e=2.718, also √2 and so on. The main difference between rational and irrational numbers is that rational numbers can be represented by fraction.