Chapter 6 Review

Equivalent Fractions/LCD

100

What is the common denominator of 3/6 and 2/3

The LCD is 6

200

Find the common denominator of 1/6 and 2/9

18

300

Simplify the fraction 11/55

and find an equivalent fractions for it

1/5 (simplified)

2/10, 3/15, 4/20, 22/110

400

Find the LCD for 1/3 and 4/8

Then convert those fractions to their LCD

24

1/3=8/24

4/8=12/24

500

Find the LCD of 5/7 and 1/3

Then convert those fractions to their LCD

LCD= 21

5/7=15/21

1/3=7/21

Add Fractions

100

2/6 + 1/6

3/6 or 1/2

200

1/12 + 1/4

4/12 or 1/3

300

2/9 + 2/3

8/9

400

1/6 + 4/5

29/30

500

4/5 + 2/3

22/15 or 1 7/15

Subtract Fractions

100

7/12 minus 3/12

4/12 or 1/3

200

5/6 - 1/2

2/6 or 1/3

300

11/12 - 2/3

3/12 or 1/4

400

4/5 - 3/11

29/55

500

5/6 - 6/10

7/30

Add and Subtract Mixed Numbers

100

5 + 3 1/2

8 1/2

200

1/2 + 10 1/6

10 4/6

or 10 2/3

300

7 minus 1/10

What is

6 9/10

400

12 1/4 minus 5 1/2

What is

6 3/4

500

Evaluate

3 1/2 minus 4/7

What is

2 13/14

Word Problems

100

In Mrs. Hess' class, 5/12 of the students are making a poster for their presentation. 1/3 of the students are making a diorama. How many total students are making a poster or diorama?

9/12 or 3/4

200

Gionino's is making party pizzas for the Super Bowl. They used pepperoni on 3/10 of the pizza. They used sausage on 1/4 of the pizza. How much more pepperoni did they use than sausage?

1/20 pepperoni

300

Nellie made some chili. She used 1/2 of black beans. Then she used 2/3 of pinto beans.

What was the total fraction of beans used?

7/6 of beans

or 1 1/6

400

Maddie is making pies for her family. The boys in her family, ate 5/6 of the pies. The girls in the family ate 7/12 of the pies. How much more of the pies did the boys eat compared to the girls.

3/12 of the pies

or 1/4

500

Corbin is a marine biologist measuring fish. One fish measures 1/2 foot. The other fish measures 2/5 of a foot. What is the difference of the 2 fish.

1/10 of a foot