what is 13/40 as a percentage and a decimal

plzz help (Speechless)

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- May 20th 2008, 06:44 AMprincesscandygalFractions and Percents
what is 13/40 as a percentage and a decimal

plzz help (Speechless) - May 20th 2008, 07:12 AMmasters
One way is to do this:

$\displaystyle \frac{13}{40}=\frac{x}{100}$

Cross multiply and solve for x.

$\displaystyle 40x = 1300$

$\displaystyle x=32.5$

So, substitute back into the expression:

$\displaystyle \frac{32.5}{100}$

Since percent means "per hundred",

$\displaystyle \frac{32.5}{100}$ means 32.5%

To convert to a decimal, simply move the decimal left 2 places and drop the % sign. Thus 32.5% = .325 - Aug 7th 2008, 05:35 PMkimmy mariepercent to fraction
what is the answer to 70% to fraction?

- Aug 8th 2008, 04:29 PMeuclid2
The easiest way is to simply type 13/40 into your calculator (13 divided by 40) and multiply there product (.325) by 100 =32.5%.

- Aug 9th 2008, 02:42 AMSimplicity
- Sep 1st 2008, 03:14 PMMaths_Tutoring
Your answers are so clear and thoroughly explained Air, +1 rep point from me, keep up the good work :)

- Sep 18th 2008, 03:39 AMParveen KaurPercentage of fraction
13/40 x 100 % = 32.5%

To change any fraction to%, times by 100%, simple - Sep 18th 2008, 09:43 AMmasters
- Sep 18th 2008, 04:42 PMParveen KaurFraction as %
yes, 100% because you can't times the fraction with any other number except 1 (100/100)

But your answer will be in 32.5% as you are not using 1/100 while doing your calculation.

13/40 x 100 %

=13/40 x 100/100

= 32.5% - Sep 19th 2008, 02:50 AMSHANONmaths
A percent is a ratio whose second term is 100. Percent means parts per hundred. The word percent comes from the Latin phrase per centum, which means per hundred. In mathematics, we use the symbol % for percent.

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SHANON

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