Although ratios are often given as fractions, castle can likewise be expressed together decimals. You need to deal with a mixture that fractions and decimals, and also to to compare ratios provided in one of two people form, therefore you require to be able to convert between the 2 forms.
You are watching: Can a ratio be a decimal
The proportion of the circumference of a circle come its diameter is a constant denoted by
If you have actually a calculator handy climate you could vital in 22 ÷ 7 to convert to a decimal. However, if not, you can use long division or one informal technique of division. Either means you should get 3.1428 …. For this reason agrees come 3 far-ranging figures.
You will certainly probably discover it much easier to use a calculator for dividing 355 by 113. The an outcome is 3.14159292, i beg your pardon agrees to 7 significant figures.
Sometimes you are provided a proportion as a decimal, however might find it easier to usage and/or remember as a fraction.
Suppose you had been told that the ratio in between a distance measured in miles and also the exact same distance measured in kilometres is about 0.625. Convert this come a fraction.
This fraction is an adequate answer, or you deserve to divide top and also bottom by typical factors to with a easier equivalent fraction.
Divide top and bottom by 5 to obtain
Divide top and also bottom by 5 again to acquire
Divide top and also bottom by 5 again to obtain .
So the fraction is , which is the fraction used earlier.
An alternative method is perform this in one line cancelling
Next 1.4.1 try some yourself
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