# Thread: The Concept of a Ratio

1. ## The Concept of a Ratio

Hello
This isn't really a urgent question, but i'd just like to ask something, that i have forgotten! I'v got a Maths Exam later today and i'm doing a bit of revision.
okay here it is:
600 mL to 1000 mL = 600 : 1000
= 3 : 5
= 0.6
i'v forgotten how to to the numbers in bold. Like how do we simplify it? How do we narrow the result in red, to the bold numbers?
Thanks

2. Originally Posted by Sazza
Hello
This isn't really a urgent question, but i'd just like to ask something, that i have forgotten! I'v got a Maths Exam later today and i'm doing a bit of revision.
okay here it is:
600 mL to 1000 mL = 600 : 1000
= 3 : 5
= 0.6
i'v forgotten how to to the numbers in bold. Like how do we simplify it? How do we narrow the result in red, to the bold numbers?
Thanks
we just divide:

ratios can be expressed as rational functions (or should i say numbers? Note: "rational function/number" is just a fancy word for fraction)

so 3:5 is the same as 3/5 = 0.6