Texas Instruments TI-83 - Page 38

SOLUTION Enter the expression 1 / ( 3 + 4 i ) on the HOME screen:
To obtain a fraction, press MATH, then select option 1: uFrac
under the MATH menu.
Hit ENTER to select 1:
uFrac. You should see the
following on your HOME
screen:
Press ENTER to obtain the following result:
MATH