Sharp EL-9900 - Manual (Page 45)

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Chapter 3: Basic Calculations — Basic Keyboard
( Enters an open parenthesis. Use with “)” as a pair, or the calcula-
tion will result in an error.
) Enters a closing parenthesis; a parenthesis left open will result in
an error.
Example
• Calculate (4 + 6) ÷ 5.
( 4 + 6 ) =
5
E
Note: Functions, such as “round(”,
automatically include an open parentheses. Each of these
functions needs to be closed with a closing parenthesis.
3. Calculations Using Various Function Keys
Use the calculator’s function keys to simplify various calculation tasks. The calculator’s
Basic Keyboard is specially designed to help you learn/solve fraction calculations
easier.
Q Simplifies a given fraction stored in the ANSWER memory.
(Set the SIMPLE mode to Manual in the SETUP menu to use this
key.)
Specifying no common factor
Simplify the fraction using the lowest common factor other than 1.
Example
1 b 12 ' + 5
b 12 E
Q E (Simplified by 2,
the lowest common factor of 12
and 6.)
Q E (Simplified by 3,
the lowest common factor of 6
and 3.)