Calculating Fractions with TI-30 XS

This calculator lesson is part of our free online GED® classes. In this lesson, we will explain how to calculate fractions with the scientific GED calculator TI-30 XS.

We’ll also explain how to use the calculator when solving math problems related to improper fractions and mixed numbers.

Our free online GED classes are great to prepare for the GED test fast and if you learn how to use this calculator effectively, you will be able to reach better scores on the GED Math portion.

As you remember, when we calculate fractions, our calculator should be in the MathPrint mode.

So, let’s make sure we are using the MathPrint Mode.

Click “Mode’ and Use the arrows to scroll down to MathPrint.

Our screen looks a bit messy, so let’s press the clear sign, to empty the screen.

Finally, we can start with fractions. First, let’s get familiar with the fraction key.

We will use this key to calculate fractions.

So now, let’s calculate how much is 1/2 + 1/3.

Press 1, and then choose the fraction sign.

Now, choose 2 and click enter.

Press the plus sign for addition. Now choose 1 and then select the fraction sign, then press 3.

Our screen shows 1/2 plus 1/3.

We can now press the final enter sign and check our result.

1/3 plus 1/2 equals 5/6.

Step-By-Step Explanation

1. Solve.

\(\frac{3}{4}-\frac{3}{7}\)
A.
B.
C.
D.

Question 1 of 3

2. Solve.

\(\frac{2}{7}+\frac{1}{4}\)
A.
B.
C.
D.

Question 2 of 3

3. Solve.

\(\frac{2}{9}-\frac{4}{5}\)
A.
B.
C.
D.

Question 3 of 3


 

Improper Fractions

Sometimes, we will need to deal with improper fractions and mixed numbers.

Let’s see how to use our calculator to solve these types of math problems.

Here is our practice question.

Add the numbers, and express your answer as a mixed fraction.

3 and two-fifths plus two and six-sevenths.

Step-By-Step Explanation

To type the mixed number, we need to use the option that says U and n over d.

This symbol is in green color and it is placed above the fraction key.

Similar to other symbols that are in green color, the U and n over d option need to be activated by first pressing the 2nd key.

So, let’s get started.

We need to type our first number, 3 and two-fifths.

Click the second key, then press the fraction key. You have activated the mixed number template.

On the screen, you will see 3 empty boxes, 1 big, and 2 smaller.

When you type 3, the big box will change to number three.

Now, press the right arrow to indicate the top box and type 2. The top box will change to number 2.

Press the arrow down symbol to point to the lower box, then type 5 and press enter.

It’s important that you press enter. It indicates the end of editing this fraction.

Now our screen shows a mixed number: 3 and two-fifths.

So, that’s good. Let’s keep moving.

Because we are calculating this fraction problem.

3 and two-fifths plus two and six-sevenths.

We need to punch the plus key for addition.

And now we need to type the second mixed number.

So, again press the second key, then press the fraction key.

Once again, you will see 3 empty boxes, 1 big and 2 smaller.

Press 2, then use the right arrow and navigate to the top box and type 6.

Now, press the arrow down key to navigate to the lower box and type 7.

Punch enter, to indicate the end of editing this fraction.

The calculator immediately shows us the result.

3 and two-fifths plus two and six-seventh equals 219 over 35.

It’s an improper fraction and we need to convert it to a mixed number.

To do so, we press 2nd again and we choose the button with this symbol.

To confirm, press enter, and here is our result: 6 and 9 over 35.

So this was our lesson about fractions, improper fractions, and mixed numbers and how to use the Texas Instruments TI-30 XS MultiView Scientific Calculator. This lesson is part of our Calculator Series within our free online GED classes.

You can continue with our free online GED calculator lessons about squares and calculating square roots by clicking on the link above. Check out also our other free online GED classes that cover GED Math, Social Studies, Language Arts, and Science.

 

Last Updated on April 8, 2021.

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