Chapter 6: Mid Chapter Checkpoint

Vocabulary

100

A ___________ is a number that is a multiple of two or more numbers

common multiple

200

A ______________ is a common multiple of two or more denominators.

common denominator

300

A ______________is made up of a whole number and a fraction.

mixed number

400

What are three benchmarks used when estimating fractions?

0, 1/2, and 1

500

____________ fractions are equal to each other.

Equivalent

Estimate

100

Estimate 5/6 + 1/2

1^1/2

200

Estimate 11/12 + 6/10

1^1/2

300

Estimate 3/6 + 4/8

1

400

Estimate 6/7-1/5

1

500

Estimate 4^1/8 - ^3/4

3

LCD

100

What is the least common denominator and equivalent fractions for 3/5 and 1/3?

LCD 15

equivalent fractions 9/15  and 5/15

200

What is the LCD and equivalent fractions for 1/2 and 3/8?

LCD: 8

equivalent fractions:  4/8 and 3/8

300

True or False?  The LCD for the fractions 5/6 and 2/9 is 54.

False.

It is 18.

400

True or False? The LCD for 1/12 and 3/8 is 24.

TRUE

500

What is the LCD and equivalent fractions for 

4/9 and 2/15?

LCD: 45

Equivalent fractions:  20/45 and 6/45

Subtract Fractions

100

Find the difference:  4/8-2/8

Put your answer in simplest form.

1/4

200

1/2-3/8=

1/8

300

11/12-7/15

Put answer in simplest form

9/20

400

5/7-2/3=

1/21

500

Tom has 7/8 cup of olive oil. He uses 1/2 cup to make dressing and 1/4 cup to make sauce.  How much oil does he have left?  

1/8 cup

Add Fractions

100

2/3+ 1/3=

3/3 or 1

200

What is the sum of 1/2 + 4/9?

17/18

300

Add 3/10 + 1/6

Write your sum in simplest form.

7/15

400

What is the sum of 5/6 and 2/5?

1^7/30

500

Henry bought 1/4 pound of cookies and 2/5 pounds of brownies.  What is the total weight? 

13/20