Fractions; Entering Fractions - HP 33s User Manual

Fractions

"Fractions" in chapter 1 introduces the basics about entering, displaying, and
calculating with fractions:
To enter a fraction, press
numerator and denominator. To enter 2
5
Ë
/ , press
8
To turn Fraction–display mode on and off, press
turn off Fraction–display mode, the display goes back to the previous display
format. (FIX, SCI, ENG, and ALL also turn off Fraction–display mode.)
Functions work the same with fractions as with decimal numbers — except for
RND, which is discussed later in this chapter.
This chapter gives more information about using and displaying fractions.

Entering Fractions

You can type almost any number as a fraction on the keyboard — including an
improper fraction (where the numerator is larger than the denominator). However,
the calculator displays
The integer and numerator must not contain more than 12 digits total.
The denominator must not contain more than 4 digits.
Example:
Keys:
¹ É
Ï
1.5
Ë Ë Ï
1 3 4
¹ É
¹ É
Ë
twice — after the integer part, and between the
Ë Ë Ë
5 8 or 5
â
if you disregard these two restrictions:
Display:

 
 

 
3
Ë
/ , press 2
8
8.
¹ É
Description:
Turns on Fraction–display mode.
Enters 1.5; shown as a fraction.
3
Enters 1 / .
4
Displays x as a decimal number.
Displays x as a fraction.
Fractions
5
Ë
3 8. To enter
. When you
5–1