you can use it by writing out the complex into a division problem then improper fraction
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any fractions that are equivalent are also equal ratios as a ratio and a fraction are pretty much the same thing.
You do not solve ratios: they are simply a form of numbers. There may be questions whose solutions require you to work with ratios but there the answer will depend on the sort of question you have to deal with.
Ratios are basically decimals, numbers, perfect squares which all come down to being fractions.As we cut fractions, same method is applied to ratios.... Cathy
Irrational numbers can't be expressed as fractions .
To divide fractions, turn the second one over - that is, swap its numerator and denominator - and multiply. Nothing else is necessary. You cross multiply when you have a proportion, that is when you have two ratios that are equal.