Turn the percentage into a fraction so that you are working with the same type of numbers.
Find a common denominator for the fractions.
Fortieths are chosen as 4, 5 and 8 are common factors of 40. These numbers all 'go into' 40.
40 ÷ 4 = 10 or 10 X 4 = 40
40 ÷ 5 = 8 or 8 X 5 = 40
40 ÷ 8 = 5 or 5 X 8 = 40
Therefore quarters, fifths and eighths can be converted into fortieths.
To change two eighths into fortieths do the following:
Multiply the denominator by 5.
8 X 5 = 40
Multiply the numerator by 5, the same number.
2 X 5 = 10
So the number of fortieths required is 10.
Two eighths = ten fortieths
To work out the percentage of the total, add up all the fortieths and then subtract the total number of fortieths from a whole.
Convert the fortieths into a percentage. To do this, change the fortieths into tenths first.
Change the tenths into hundredths. Then change the hundredths into a percentage.
Calculate a tenth of a million dollars which is also equivalent to ten percent of a million dollars.
Here is the final answer:
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