Fraction and Algebra Review

Multiplying Fractions

100

1/2 x 1/2

1/4

200

3 x 1/3

1 or 3/3

300

1/2 of 4/5

2/5 or 4/10

400

1/3 x 3/6

1/6 or 3/18

500

Sarah had a dozen cupcakes, and she ate 1/4 of them. She gave the rest to her sisters. How many cupcakes did Sarah give to her sisters?

9 cupcakes

Adding Fractions

100

3/5 + 3/5

1  1/5

200

1/2 + 3/6

1 or 12/12

300

3/5 + 3/4

1  7/20

400

1 1/3 + 2 1/4

3  7/12

500

1 1/3  +   1  4/5

3  2/15

Subtracting Fractions

100

3/5 - 1/2

1/10

200

2 1/5 - 1 1/3

13/15

300

4/5 - 7/10

5/50

400

When subtracting fractions with different denominators, what do you do first?

Find common denominators

500

Can you leave an improper fraction as an answer?

No. You must make it into a mixed number.

Dividing Fractions

100

1/2 divided by 3

1/6

200

1/3 divided by 4

1/12

300

4 divided by 1/3

12

400

5 divided by 1/5

25

500

I want to divide all my math papers into fourths. If I have six papers, how many fourths do I now have?

24

Order of Operations

100

Which operation means to find the product?

Add, subtract, multiply, or divide?

multiply

200

What do I do first in this expression?

1 x 5 + (5x2)

The parentheses, 5x2

300

Solve this expression.

1 x 5 + (5x2)

15

400

Solve this expression.

5-2+3x1

6

500

Solve this expression. Find the product of 3 and 2, then take away 5.

1