jennyjewell25 Group Title Identify the number as rational or irrational. Explain. 291.87 2 years ago 2 years ago

1. myininaya Group Title

Can this number be written as an integer/integer?

2. jennyjewell25 Group Title

i have no idea

3. myininaya Group Title

If so it it rational If not it is irrational

4. radar Group Title

291 87/100

5. myininaya Group Title

So based on what radar posted what conclusion can you draw?

6. jennyjewell25 Group Title

i dont even understand what he put i dont even understand the question

7. myininaya Group Title

Basically it is asking if you can write it as an integer over and integer or not

8. myininaya Group Title

$\text{ example } 21.23 \text{ is rational because } 21.23=\frac{2123}{100}$

9. myininaya Group Title

2123 and 100 are integers

10. myininaya Group Title

10.421=10421/1000 is rational too

11. jennyjewell25 Group Title

so another words it rational because its equivalent to a fraction

12. myininaya Group Title

a fraction that is only composed of integers integers are {...,-3,-2,-1,0,1,2,3,...}

13. jennyjewell25 Group Title

wow im confused

14. myininaya Group Title

an example of irrational is 2.533333343536346346436346363634564352345325235.... keeps going and has no pattern

15. myininaya Group Title

your number terminates so it is rational

16. myininaya Group Title

if the decimal part has a pattern it would also be rational since it can be written as an integer over an integer

17. myininaya Group Title

just like one that terminates can be written as an integer over an integer

18. myininaya Group Title

pattern or terminates=> rational

19. myininaya Group Title

no pattern and forever never ending=>irrational

20. myininaya Group Title

is that less complicated?

21. radar Group Title

Some irrational numbers are pi, the square root of 2, and many others.

22. jennyjewell25 Group Title

yes thank you

23. radar Group Title

Good luck with these, you will find irrational things in life. They are real, but can't be expressed exactly.