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Math Help - formula for writing decimals as percentages

  1. #1
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    formula for writing decimals as percentages

    I'm trying to help my kid with maths and need help please tell me how to go about writing a decimal ie. .125 as a percentage
    thanks
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  2. #2
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    multiply by 100, therefore in the case of 0.125 the equivalent percentage would be 12.5%.
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  3. #3
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    Hello, Janet!

    How to write a decimal, i.e., 0.125 as a percentage

    Move the decimal point two places to the right ... and append "%".

    Hence: . 0.125 \quad\Rightarrow\quad 12.5\%

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  4. #4
    Newbie DavePercy's Avatar
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    I think of the % symbol as being a constant of .01 or 1/100. This way 100% = 100 x .01 = 1 and .125 = 12.5 x .01 = 12.5%. I don't know if this is a helpful way to learn it the first time but it makes a lot of sense after learning implied multiplication.
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