Q: How do you know when to use differences ratios fractions or percents?

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i dont know

-- Take the information given with the question. -- Think over what you know about fractions. -- Use the given information, combined with what you know about fractions, to find the missing information.

You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.

I do not know sooo

Who created fractions first**,Egyptians** or King Henry

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They need to know about decimals, fractions, and percents because they need to know the exact measures of the things they are designing.

To change % to fraction: Divide the % by 100% Example: To change 93% to fraction: 93%/100% = 93/100

1/2 is equivalent to 7/14. Ratios are just like fractions, so this is how you know: If you take 1/2 and multiply both the top and bottom by 7, you will get 7/14. As long as you multiply both the top and bottom by the same number, you will get equivalent fractions.

i dont know

Yes their is an interesting fact about fractions that is you have to know how to do them

i dont know the ranges but it is 70% ur welcome.... :)

well i know that you cant spell KNOW. also that fractions are fractions of a number ex: the fraction of 1/2 is half of one whole.

you think I really know?!

the percents that you should easily know like 0% 50% and 100%

-- Take the information given with the question. -- Think over what you know about fractions. -- Use the given information, combined with what you know about fractions, to find the missing information.

what a weird website if you do not know the answer

You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.