A ratio is used to compare two quantities. The quantities should be in the same units.
Part of Application of MathsNumeracy
Save to My Bitesize
A farmer has \(3\) cats and \(7\) dogs.
Write down the ratio of cats to dogs and the ratio of dogs to cats.
Cats : Dogs = \(3 : 7\)
Dogs : Cats = \(7 : 3\)
The same farmer also has \(85\) sheep and \(15\) cows.
Write down the ratio of cows to sheep in its simplest form.
cows : sheep = \(15 : 85\)
\(15\) and \(85\) are both divisible by \(5\)
\(\frac{{15}}{5} = 3\)
\(\frac{{85}}{5} = 17\)
So \(15 : 85 = 3 : 17\)