If a number is not a whole number then it is not a natural number

Natural numbers are our counting numbers. the numbers we see in nature. you can count 1,2,3,4 flowers. or 1,2,3,4,5,6,7,8 pedals on the flowers. etc they are our positive integers

whole numbers are numbers that can be written as an integer. 4/2 6/3 etc

so if it cant be written as an integer, it cant be a positive integer

Equatorial triangle and obtuce angle