Operations with Rational Numbers

Adding Rational Numbers

100

5/6 + 2/6

What is 7/6 or 1 1/6?

200

3/4 + (-1/2)

What is 1/4?

300

-2/3 + 7/9

What is 1/9?

400

8/5 + (-3/2)

What is 11/10 or 1 1/10?

500

-4 1/2 + 3 3/8

What is -1 1/8?

Subtracting Rational Numbers

100

5/8 - 3/8

What is 1/4 or 2/8?

200

7/10 - 1/2

What is 1/5 or 2/10?

300

-4/5 - 3/5

What is -7/5 or -1 2/5?

400

5 1/3 - (-2 1/2)

What is 7 5/6?

500

-1/4 - 3 3/8

What is -3 5/8?

Multiplying Rational Numbers

100

 1/2 * 3/4

What is 3/8?

200

-2/3 * 9

What is -6?

300

5/6 * (-7/2)

What is -35/12 or -2 11/12?

400

-3 1/2 * 2 2/5

What is -8 2/5?

500

3/7 * (-9 3/8)

What is -2 11/28 or -2.39?

Dividing Rational Numbers

100

3/4 ÷ 1/2

What is 1 1/2 or 3/2?

200

-5 ÷ 1/2

What is -10?

300

7/9 ÷ (-2/3)

What is -7/6 or -1 1/6?

400

-4 1/2 ÷ 3/5

What is -7 1/2 or -15/2?

500

2/3 ÷ (-3 1/4)

What is -8/39?

Mixed Operations

100

(1/2 + 1/4) * 2

What is 1 1/2 or 3/2?

200

(3/4 - 1/3) ÷ 2

What is 7/24?

300

((-2) * 5/6) - 1/2

What is -1 5/12?

400

4 1/3 + (-2 1/2) * 3/4

What is 2 7/8?

500

(5/6 ÷ -1 1/5) + 3/4

What is 9/20?