Exam-style question
Try this first
Why is 7 a rational number?.
- A.It can be written as 7/1
- B.It cannot be written as a fraction
- C.It is larger than 1
- D.It contains no decimal point
Model answer
What a good answer should say
- It can be written as 7/1
Explanation
Why this works
All integers are rational because any integer can be written as that integer divided by 1. For example, 7 = 7/1.
Common mistake
No common mistake is linked to this question yet.