Education Technology

Knowledge Base

Solution 34831: Entering and Computing Fractions on the TI-84 Plus C Silver Edition.

How do I enter and compute fractions on a TI-84 Plus C Silver Edition?

The TI-84 Plus C Silver Edition does not have a specific fraction key, but it does have a template that allows fractions to be entered.

For example, add 3 2/5 to 3/4 using the steps below:

1) Press [ALPHA] [F1] [1].

2) Enter in [3].
3) Scroll down.
4) Enter in [4].
5) Scroll to the right.
6) Press [+].
7) Press [ALPHA] [F1] [2].
8) Enter in [3].
9) Scroll to the right.
10) Enter in [2].
11) Scroll down.
12) Enter in [5].
13) Press [ENTER].

Depending on settings, below are two possible answers with MATHPRINT turned on and switching from n/d to Un/d.

Changing a decimal into a fraction.

Example: Convert .4 into a fraction.

Solution:

Press [.] [4] [ALPHA] [F1] [4] [Enter].

Changing a fraction into a decimal.

Example: Convert 15/6 into a decimal.

1) Press [ALPHA] [F1] [1].
2) Enter in [15].
3) Scroll down.
4) Enter in [6].
5) Scroll right.
6) Press [ALPHA] [F1] [4] [Enter].

Please see the TI-84 Plus C Silver Edition guidebook for additional information.