Fraction and Decimal Operations on a Calculator Notes

Fraction and Decimal Operations on a Calculator Notes

by Carly Rexing

​How to type in a fraction

• ​no whole number:

  • ​type numerator

  • ​click fraction button

  • ​type denominator

• ​whole number:

  • ​type whole number

  • ​click fraction button

  • ​type numerator

  • ​click fraction button

  • ​type denominator

​Converting mixed numbers to improper fractions

1. ​type in fraction

2. ​slick 2nd button

3. ​click fraction button

​

Multiple Choice

Change this Improper Fraction to a Mixed Number.

• $$5\ \frac{1}{3}$$  

• $$4\ \frac{2}{3}$$  

• 6

• $$5\ \frac{2}{3}$$  

Multiple Choice

Convert the Mixed Number to an Improper Fraction. 

$$5\ \frac{3}{5}$$  

• $$\frac{13}{5}$$  

• $$\frac{28}{5}$$  

• $$\frac{25}{5}$$  

• $$\frac{28}{3}$$  

​Fractions in simplest form

• ​type in fraction

• ​click enter button

Multiple Choice

Simplify  9/45

• 3/15
• 5
• 4
• 1/5

Multiple Choice

Simplify  14/35

• 3
• 2/5
• 5/2
• 7/17.5

​Operations with Fractions

• ​type in first fraction

• ​click needed operation

• ​type in second fraction

Multiple Choice

What is ¹/₈ + ⁵/₈?

• 1
• ⁶/₁₆ or ³/₈
• ⁶/₈ or ³/₄
• ²/₄ or ¹/₂

Multiple Choice

$$\frac{8}{9}\ -\ \frac{1}{3}\ =\$$  

• $$\frac{7}{6}$$  

• $$\frac{5}{9}$$  

• $$\frac{2}{3}$$  

• $$\frac{8}{27}$$  

​Converting to a decimal / fractions

• ​Type in fraction or decimal

• ​click 2nd button

• ​click PRB (F<>D)

• ​click enter

Multiple Choice

Write as a decimal

12/20

• 0.6

• 0.5

• 0.55

• 0.12

Fill in the Blank

Write as a decimal

$$\frac{22}{95}$$  

​Negatives with fractions and decimals

​Still use your calculator!

​

​Make sure to use the negative button (-) NOT the minus sign

​Decimal answer:

​

​Fraction answer:

Multiple Choice

solve 

$$\frac{5}{9}+\left(-\frac{1}{3}\right)$$  

• - 2/9
• - 5/9 
• 2/9
• no there

Multiple Choice

Find the quotient

-3.6 ÷ .06

• -0.6

• 6

• -60

• 600