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You can put this solution on YOUR website!
You find averages by adding the numbers together and then dividing by how many numbers there are.
\n" ); document.write( "These numbers are fractions so it will be a bit of a pain because adding them requires the effort of finding the common denominator and then changing the denominators to the common one. And then we'd have to divide a fraction!?
\n" ); document.write( "We can make the problem easier if we realize that all of the fractions, in decimal form, are terminating (i.e. non-repeating) decimals:
\n" ); document.write( "1/2 = 0.5
\n" ); document.write( "2/5 = 0.4
\n" ); document.write( "3/4 = 0.75
\n" ); document.write( "4/5 = 0.8
\n" ); document.write( "Adding and dividing decimals is must easier. So this is how we will proceed. Adding we get:
\n" ); document.write( "2.45
\n" ); document.write( "dividing by 4 we get:
\n" ); document.write( "0.6125
\n" ); document.write( "This is the average.
\n" ); document.write( "If you feel that the4 answer should be in fraction form, then we can convert this decimal back to a fraction:
\n" ); document.write( "
\n" ); document.write( "P.S. The answer works out the same if you do all the work in fraction form. \n" ); document.write( "