Remember that ratios are essentially fractions without fraction bars...
If they asked to find the ration of 19.50 to 16.25 you would set them up like so....
19.50 : 16.25 -----> since fractions can be simplified so can ratios in the same manner
the ratio you would end up with is 6 : 5
Ratios can be easily remembered and solved if you understand the link between them and fractions.
I hope this helps! :D
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