Unit 6 fractions review

Unit 6 fractions review

Composing and decomposing fractions

• Know what a unit fractions is

• to make a fraction you are basically adding fractions to make the one you need

• for example 1/3+1/3= 2/3

• don't forget denominators stay the same

Multiple Choice

• A

• B

• C

• D

Equal fractions

• remember that the equal sign means that both sides have to add to the same fraction

• the denomiators must stay the same

• pay attention to the fraction made on each side

Multiple Choice

This model can be shaded to represent

 $\frac{7}{6}$  .

Which number sentence represents two different ways that  $\frac{7}{6}$  can be represented with shaded fractions on the model?

•  $\frac{1}{6}+\frac{6}{6}=\frac{5}{6}+\frac{3}{6}$  
  

•  $\frac{1}{6}+\frac{1}{6}+\frac{4}{6}=\frac{4}{6}+\frac{3}{6}$  
  

•  $\frac{3}{6}+\frac{3}{6}=\frac{1}{6}+\frac{2}{6}+\frac{4}{6}$  
  

•  $\frac{3}{6}+\frac{4}{6}=\frac{2}{6}+\frac{5}{6}$  
  

Multiple Choice

The two models are shaded to represent the same fraction

 $\frac{4}{8}$  .
Which equation shows that the two models are the same fraction?

•  $\frac{3}{4}+\frac{1}{4}=\frac{2}{4}+\frac{2}{4}$  

•  $\frac{3}{8}+\frac{1}{8}=\frac{2}{8}+\frac{2}{8}$  

•  $\frac{3}{8}+\frac{2}{8}=\frac{2}{8}+\frac{2}{8}$  

•  $\frac{4}{8}+\frac{1}{8}=\frac{4}{8}+\frac{2}{8}$  

Comparing fractions

• Use the butterfly method

• label the fractions if you can

• make sure you know your comparison signs

Multiple Choice

Adding and subtracting fractions

• The numerator is what gets added or subtracted

• the denominator stays the same

Multiple Choice

Kayden has 3/9 of a pizza and Laila gave her 2/9 of a pizza.  How much pizza does Kayden have now?

• 5 Pizzas
• 5/9 of a pizza
• 1/9 of a pizza
• 1 pizza

Converting fractions to decimals

• if the fraction if over 10 then the number has to end in the 10ths place which is right after the decimal

• If the fraction is over 100 then it has to end in the 100's place. two numbers have to be after the decimal

• If it is a mixed fraction the big number, or whole number is infront of the decimal

Multiple Choice

The model below is shaded to represent 1 ¹/₁₀. Which decimal does the model represent?

• 1.1
• 11.0
• 1.01
• 10.1

fractions on a numberline

• the small ticks are the fractions

• pay attention to the whole numbers on the largest tick marks

• you can also use a numberline to ad or subtract

Multiple Choice

• 45 ⁶/₁₀   45.06 
  
• 45 ⁶/₁₀₀   45.6 
• 45 ⁶/₁₀₀   45.06 
• 45 ⁶/₁₀   45.6