Fractions Review

Parts of a Fraction

100

What is the top number called?

NUMERATOR

200

What is the bottom number called?

DENOMINATOR

300

A fraction is a part of a...

whole

400

True or False?

When drawing a fraction diagram, you need to have equal parts.

True. 

500

True or False?

If the number on the top of the fraction is the same as a bottom, the entire fraction is equal to one half. 

FALSE!!!!

Estimating Fractions

100

2/19 + 2/5

0 + 0

or 

0 + 1/2

200

7/13 + 3/4 

1/2 + 1

or 

1 + 1

300

19/22 - 2/12 

1 - 0

400

12/14 + 6/7 

1 + 1 

500

14/16 - 5/7 

1-1

Common Denominators

100

What is the common denominator for fractions with 2 and 3 as the denominator?

6

200

What is the common denominator for fractions with 3 and 9 as the denominator?

9

300

Find the common denominator of the two fractions. 

Rewrite the fractions with new numerators. 

1/2 and 3/4

2/4 and 3/4 

400

Find the common denominator of the two fractions. 

Rewrite the fractions with new numerators. 

3/7 and 1/2 

6/14 and 7/14

500

What are the multiples of the following denominators? List the first FIVE. 

1/6 and 3/7 

6: 6, 12, 18, 24, 30

7: 7, 14, 21, 28, 35

Adding Fractions

100

1/5 + 3/5 

4/5 

200

1/2 + 1/2 

one whole or 2/2

300

3/6 + 1/3 

3/6 + 2/6  = 5/6

400

1/7 + 3/4

4/28 + 21/28 = 25/28

500

4/6 + 1/18

12/18 + 1/18 = 13/18

Subtracting Fractions

100

5/7 - 2/7 

3/7

200

23/90 - 12/90

11/90

300

3/4 - 7/12

9/12 - 7/12 = 2/12

400

5/6 -1/4

10/12 - 3/12 = 7/12

500

What is the LCD of 100 and 25?

100