LESSON II. Learn the 30 fraction-decimal-per cent equivalents in
the table below and, most importantly, how they are generated or created so that memorizing them is
not simply a mindless process. The reason for this is that memorized information quite often needs
reinforcement and is easily forgotten.
However; if you understand
a concept and can reason your way to an answer or solution, you should never be able
to forget the concept.
Learning the fractional-decimal-per cent equivalents of only 30 values will allow you (upon brief
analysis of any numbers involved in a problem) to force almost any problem to within the constraints
of your knowledge; for example,
if 625 (or .0625 or 6250, etc.) represents both 1/16 and 5/8, you would choose to use
5/8 rather than 1/16 since you learned long ago to multiply by 5 and divide by 8 but
did not learn how to divide by 16 easily.
6 1/4: ...50% is 1/2; ...25% is 1/4; ...12 1/2% is 1/8; ...6 1/4% is 1/16
...therefore the sixteenths, eighths, fourths and halves are:
...6 1/4%...12 1/2%...18 3/4%...25%...31 1/4%...37 1/2%...43 3/4%...50%...etc.
8 1/3: ...33 1/3% is 1/3; ...16 2/3% is 1/6; ...8 1/3% is 1/12
...therefore the twelfths, sixths, fourths, thirds and halves are:
...8 1/3%...16 2/3%...25%...33 1/3%...41 2/3%...50%...etc.
5: ...20% is 1/5; ...10% is 1/10; ...5% is 1/20;
...therefore the twentieths, tenths, fifths, fourths and halves are
...5%...10%...15%...20%...25%...30%...35%...40%...45%...50%...etc.
4: 4% is 1/25...therefore the twenty-fifths are are:
...4%...8%...12%...16%...20%...24%...28%...32%...36%...40%...44%...48%...52%...etc.
11 1/9: 11 1/9% is 1/9...therefore the ninths and thirds are:
...11 1/9%...22 2/9%...33 1/3%...44 4/9%...55 5/9%...etc.
9 1/11: 9 1/11% is 1/11...therefore the elevenths are:
...9 1/11%...18 2/11%...27 3/11%...36 4/11%...45 5/11%...54 6/11%...etc.
142857142857...(14 4/7%) (2 x 7...2 x 14...2 X 28 + 1): is a repeating number that produces the sevenths.
...[ Begin with 1, then 2, then 4, then 5, then 7 then 8; carry out as far as desired ]
...14.18571%...28.57142%...42.85714%...57.14285%...71.42857%...85.71428...etc.
You will find that the above sequences allow you to use per cents, whole
numbers, decimals and their fractional equivalents in solving problems -
whichever form of the number you find easiest to work with. I have arranged
these equivalents into a TABLE which presents
all of the above in a reasonable, orderly fashion.
Further, I have provided you with a series of useful EXAMPLES
which should prove helpful in your beginning to choose the easiest
way to do any math problem.
Bart Jones
1128-A Beville Road Daytona Beach, FL 32114-5769
Ofc: (386) 252-4366
Alt: 252-4278
Fax: 252-6385
e-mail: Math