Sure! Here’s a revised version of your text for clarity and grammatical accuracy:
All whole numbers consist of all natural numbers and zero. Rational numbers, on the other hand, are composed of all fractions and integers. I believe that all whole numbers are rational numbers. Since whole numbers include natural numbers and zero, this applies to the numbers 1, 2, 3, and so on. However, I do not believe that all rational numbers are whole numbers. This is because whole numbers exclude negative numbers, decimals, and fractions. Since rational numbers include these, it is not possible for all rational numbers to be whole numbers.
Let me know if you need any further changes!