Adding and Subtracting Fractions with TI84 Calculator

This video tutorial demonstrates how to use the TI84 graphing calculator to add and subtract fractions. It emphasizes that the calculator is a tool for checking work and problem-solving, not a replacement for basic skills. The tutorial covers entering fractions, converting decimals to fractions, and handling mixed numbers and improper fractions. It also includes examples of both addition and subtraction of fractions.

What is the primary purpose of using the TI84 calculator for fractions as mentioned in the video?

• To avoid learning fractions by hand

• To check your work and focus on problem-solving

• To replace basic fraction skills

• To learn new fraction skills

How do you enter the fraction 5/8 into the TI84 calculator?

• 5 times 8

• 5 minus 8

• 5 divided by 8

• 5 plus 8

What sequence of buttons do you press to convert a decimal to a fraction on the TI84?

• Math, Convert, Enter

• Math, Decimal, Enter

• Math, Fraction, Enter

• Math, Enter, Enter

When converting an improper fraction to a mixed number, what is the first step after obtaining the decimal value?

• Divide by the numerator

• Subtract the whole number part

• Multiply by the denominator

• Add the whole number part

How do you enter the mixed number 2 and 5/12 into the TI84 calculator?

• 2 plus 5 divided by 12

• 2 times 5 divided by 12

• 2 minus 5 divided by 12

• 2 divided by 5 plus 12

What is the result of adding 2 and 5/12 with 1 and 5/8 on the TI84 calculator?

• 3 and 1/24

• 4 and 1/24

• 6 and 1/24

• 5 and 1/24

In the subtraction example, what is the result of 6/25 minus 7/35?

• 1/25

• 4/25

• 2/25

• 3/25

How do you enter the mixed number 4 and 1/3 for subtraction on the TI84?

• 4 minus 1 divided by 3

• 4 divided by 1 plus 3

• 4 plus 1 divided by 3

• 4 times 1 divided by 3

What is the mixed number result of 4 and 1/3 minus 2 and 7/8?

• 3 and 11/24

• 2 and 11/24

• 1 and 11/24

• 4 and 11/24

Why is it important to know how to solve fraction problems by hand, according to the video?

• To save time

• To understand the underlying concepts

• To impress others

• To avoid using calculators