Add the 2 percentages together, then divide by 2.
They can both be converted into decimals and from there into fractions or percentages.
2 = 200%
2%
i don't know the percentages but i do know that hydrogen and helium are the 2 main gases! sorry this did not completely answer the question:(
2/5 = 40/100 = 40%
Two examples to find the average of percentages: (45% + 34%) / 2 = 39.5 (23% + 26% + 45% + 24%) / 4 = 29.5
2/3 = 662/3 %
Percentages are percentages - simple! The marketing people have not yet come up with "new improved" percentages.
97% awesome 2% stupid 1% kids
both signify a part of a whole. percentages are based on 100 being 1 so 100% is 1 whole thing. 1 whole thing with decimals is 1.00. You can change from decimals to percentages by moving the decimal 2 places to the right and percentages to decimals by moving the decimal 2 places to the left.
The answer depends on what you are trying to do with the percentages.