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HP 9g Solving Problems Involving Fractions
~o=
5
Answer:
5 4, i.e.
4
Example 9: Find a fraction which approximates π to four decimal places.
First set the number of displayed decimal places to 4 by pressing ~Ü4. Notice that π F↔D will
Solution:
not return a fraction, because π is calculated to 24 significant digits. Too many digits for F↔D to handle.
(Also, bear in mind that denominators on the HP 9g must be less than 10000). π has to be rounded to four
decimal places before attempting the conversion. To do so use the RND command in the MATH menu:
Y3~Õ~n=
The mixed number 3 177 1250 is returned. If a fraction is preferred, convert this number to an improper
fraction by pressing:
~o=
3927
=
Answer:
177
3
1250
1250
hp calculators
=
.
3
1416
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HP 9g Solving Problems Involving Fractions - Version 1.1
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