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Converting percents into ratio and ratio into a percent?

I need to convert these percents into a ratio

75%

55%

and i need to convert these ratios into a percent

2/5

7/20

6 Answers

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  • 10 years ago
    Favorite Answer

    75% = 75/100 = 3/4

    55% = 55/100 = 11/20

    2/5 = 0.4*100 = 40%

    7/20 = 0.35*100 = 35%

  • 10 years ago

    It's simple Nate!!! Let me help ya!

    First off, in percents, we are saying "this out of 100!" for example, 75% out of 100%. like grades, right?

    So, if you're trying to convert your percent to a fraction then you basically do x/100.

    Watch:

    75/100 (reduce these!!) =3/4

    55/100 (reduce these!!) = 11/20

    Converting a ratio is easy too!!!

    2/5- ask yourself how many times does 5 go into 100?

    This will = 20! then, multiply your top number by 20! So, you're answer is 20/100!!!

    Try the next one!

    7/20= 20 goes into 100 5 times!

    7x5= 35!

    therefore, your answer is 35/100!

    If you need any help, email me at oldbobbarker@hotmail.com

  • Anonymous
    5 years ago

    Just take both sides of the ratio and multiply to get the left side to be 100. So the ratio 2/5 = (2*20)/(5*20) = 40/100 40/100 = 40%

  • 10 years ago

    75% = 3/4

    55% = 11/20

    2/5 = 40%

    7/20 = 35%

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  • 10 years ago

    okay so for percent to ratio you gotta find the HCF (highest common factor) which in this case is 5

    umm kiddo those bottom ones arent ratios theyre fractions

    so if you gotta turn 75% into a fraction

    lets break it down per-cent

    per means "out of"

    cent means"100"

    so percent means "out of 100"

    so now were left with 75 out of 100, which written as a fraction is 75/100

    now we simplify it by using the highest common factor which is 25

    so we divide 75 and 100 into 25 and were left with 3/4

    if im not confused by your question then reply to my answer and i will continue telling you how to do this

  • Ed I
    Lv 7
    10 years ago

    3/4

    11/20

    40%

    35%

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