Unit 3 Practice Test

The blue shaded section shows...

$$\frac{6}{15}=\frac{2}{?}$$  

What is the LCM of 3 and 9?

Find the LCM of 5 and 8

What is the Least Common Multiple of 4 and 14

What is the least common multiple of

$$\frac{1}{2}$$  and  $$\frac{1}{3}$$  

  $$\frac{1}{3}$$  =  $$\frac{?}{6}$$  

To make grape juice, Elizabeth added  $$\frac{5}{8}$$  cup of water to  $$\frac{1}{4}$$  cup of grape juice concentrate. How much grape juice did Elizabeth make? Before solving, what is the least common multiple?

$$\frac{2}{5}$$  - $$\frac{1}{3}$$  

Rewrite this problem with common denominators

David biked 8  $$\frac{3}{8}$$   miles on Tuesday and 5  $$\frac{7}{8}$$   miles on Wednesday. How much farther did he bike on Tuesday than he did on Wednesday?

4/6 + 3/6

9 3/6 - 3 4/6

12 5/8 - 6 7/8

2 1/4 + 1 3/4

Convert the Mixed Number to an Improper Fraction. 

$$3\ \frac{4}{6}$$  

Convert the Mixed Number to an Improper Fraction. 

$$5\ \frac{3}{5}$$  

After dividing a common number, You need to ask yourself-

Después de dividir un número común, debe preguntarse:

Simplify this fraction 6/8

simplifica esta fracción

Simplify this fraction 5/20

simplifica esta fracción 5/20

Simplify the fraction 10/15