Answers for 'If I had a million dollars' Maths Problem

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

Answers for the million dollar maths problem

To work out the percentage of the total, add up all the fortieths and then subtract the total number of fortieths from a whole.

Answers for the million dollar maths problem

Convert the fortieths into a percentage. To do this, change the fortieths into tenths first.

Answers for the million dollar maths problem

Change the tenths into hundredths. Then change the hundredths into a percentage.

Answers for the million dollar maths problem

Calculate a tenth of a million dollars which is also equivalent to ten percent of a million dollars.

Answers for the million dollar maths problem

Here is the final answer:

Answers for the million dollar maths problem

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