Maths T2 W1

Hi, I'm going to tell you all about ratios today. Firstly though, I need to tell you about my work in detail. So, I did ratios on the sprocket and the pedal gear which is on a bike so that the bike can move. There were two questions and 1 question has 3 mini question IN both of them (I think). I will show you my awesome but educational maths work (on ratios). A ratio between two or more quantities is a way of measuring their sizes compared to each other. For example, if a school has 20 teachers and 500 pupils then the ratio of teachers to students is written as 20:500 (read as "20 to 500"). It can be written two ways; for example, 1:10 or 1/10. Equivalent ratios (which are, in effect, equivalent fractions) are two ratios that express the same relationship between numbers. We can create equivalent ratios by multiplying or dividing both the numerator and denominator of a given ratio by the same number. And as we know, if we multiply both the numerator and the denominator by similar non-zero real quantities, their ratio will never change. It can be written as (5n)/(7n), where n a non-zero real number. A ratio shows how much of one thing there is compared to another. Ratios are usually written in the form a:b. If you are making orange squash and you mix one part orange to four parts water, then the ratio of orange to water will be 1:4. The order in which a ratio is stated is important. 

Ok, enough information (I hope) and I'm finally ready to show you my work this week!

Here it is.

Have you like, ever, ever (ever, ever) done ratios before?
I would really, really, really (really, really, really) like it if you comment!!!
Thanks so, so, so much!