Unit 1 Math Review

Equivalent Fractions​

​2 Fractions that have equal value

Multiple Choice

What is an equivalent fraction for 5/8

• 10/8

• 5/16

• 10/16

• 6/9

Multiple Choice

What is an equivalent fraction to 3/4?

• 6/8

• 6/4

• 3/8

• 22/25

Multiple Choice

What is an equivalent fraction to 2/9?

• 2/9

• 4/18

• 2/18

• 45/9

Steps for Adding Fractions​

• ​Always start with the fractions!!

• Find common denominator by finding the Least Common Multiple

• Change fractions by multiplying the numerator and denominator

• Rewrite fraction with common denominator

• add the numerators ​

• keep denominators

• If answer is an improper fraction - make a mixed number

Let try some!​

Multiple Choice

Solve the equation:

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

• $$\frac{6}{9}$$  

• $$\frac{6}{6}\ or\ 1$$  

• $$\frac{7}{6}\ or\ 1\ \frac{1}{6}$$  

• $$\frac{4}{9}$$  

Multiple Choice

Solve the equation:

$$2\ \frac{7}{9}\ +4\ \frac{5}{9}\ =$$  

• $$6\ \frac{12}{9}$$  

• $$7\ \frac{3}{9}\ \ or\ 7\ \frac{1}{3}$$  

• $$7\ \frac{12}{18}$$  

• $$6\ \frac{12}{18}$$  

Multiple Choice

Solve the equation:

$$3\ \frac{3}{8}\ +\ 4\ \frac{5}{6}$$  

• $$7\ \frac{8}{14}$$  

• $$7\ \frac{38}{24}$$  

• $$8$$  

• $$8\ \frac{14}{24}\ or\ \ 8\ \frac{7}{12}$$  

Steps for Subtracting Fractions

​

• ​Always start with the fractions!

• ​Find common denominator by finding the Least Common Multiple

• Change fractions by multiplying the numerator and the denominator

• Rewrite fraction with new common denominator and numerators

• subtract numerators: regroup from whole number when necessary

• keep denominators

• Don't forget to subtract the whole numbers​

• If answer is an improper fraction - make a mixed number

Let try some!​

Multiple Choice

Solve the equation:

$$\frac{5}{7}\ -\ \frac{1}{4}\ =$$  

• $$\frac{4}{3}\ or\ 1\ \frac{1}{3}$$  

• $$\frac{27}{28}$$  

• $$\frac{13}{28}$$  

• $$\frac{6}{11}$$  

Multiple Choice

Solve the equation:

$$\ 5\ \frac{2}{5}\ -\ 3\ \frac{5}{8}\ =$$  

• $$1\ \frac{31}{40}$$  

• 2

• $$9\ \frac{1}{40}$$  

• $$2\ \frac{7}{40}$$  

Poll

Solve the equation:

$$7\ -\ 3\ \frac{5}{9}\ =$$  

• $$4\ \frac{5}{9}$$  

• 4

• $$4\ \frac{4}{9}$$  

• $$3\ \frac{4}{9}$$  

​Word Problems with Fractions

• Read the problem from start to finish.

• Read the problem again looking for clues on how to solve

  • numbers

  • key words

• ​Underline the question being asked

• Draw a model to help you​ solve

Subject | Subject

Let try some...​

​Pete and Sam ordered a pizza. Pete ate 1/3 of the pizza and Sam ate 3/6 of the pizza. How much pizza did they eat?

Multiple Choice

Solve the word problem:

Jethro and Marta shared a giant cookie. Jethro ate 3/10 of the cookie. Marta ate 1/2 of the cookie. How much of the cookie did they eat?

• 8/10

• 3/10

• 4/10

• 10/10

Multiple Choice

Solve the word problem:

Marcus and his family spend $$\frac{1}{2}$$   of their vacation visiting relatives, and another $$\frac{5}{12}$$   of it at the beach. What fraction of their vacation did they spend either with family or at the beach.

(Draw a picture on your white board)

• $$\frac{6}{12}$$  

• $$\frac{2}{12}$$  

• $$\frac{11}{12}$$  

• $$\frac{6}{14}$$