Q: How do you add two percentages?

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This is more complicated than it first appears. You cannot simply add percentages together - you need to know what they are percentages out of. So if you have x% being a out of b so that x = 100*a/b and y% being c out of d so that y = 100*c/d Then the sum of the percentages is 100*(a+c)/(b+d). The clearest way to see that you cannot simply add up the percentages is, if you get a 50% score in one exam and a 50% score in another, you do NOT get 100% in the two exams combined!

Since percentages are based on a common denominator of 100, they are easier to add and subtract.

Yes add the 4 percentages together then divide them by 4 to obtain the average percentage

2 = 200%

Add the total of the percentages toegether then divide it by the number of results.

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Add the 2 percentages together, then divide by 2.

This is more complicated than it first appears. You cannot simply add percentages together - you need to know what they are percentages out of. So if you have x% being a out of b so that x = 100*a/b and y% being c out of d so that y = 100*c/d Then the sum of the percentages is 100*(a+c)/(b+d). The clearest way to see that you cannot simply add up the percentages is, if you get a 50% score in one exam and a 50% score in another, you do NOT get 100% in the two exams combined!

Since percentages are based on a common denominator of 100, they are easier to add and subtract.

Decimal to percent- move the decimal 2 (two) places to the right and add the percent sign. percent to decimal- move the decimal 2 (two) places to the left and take away the percent sign.

same as normal adding!

Yes add the 4 percentages together then divide them by 4 to obtain the average percentage

you add them as fraticon and then turn it into a percentage

You can compare two values.

2 = 200%

Add the total of the percentages toegether then divide it by the number of results.

Add them together and divide by 4 (the number of percentages you had in the first place) It's just like averaging plain numbers

50%