Rational Numbers

Converting Rational Numbers

100

Write -.8 as a fraction in simplest form.

What is -8/10= -4/5

200

Write -2 8/25 as a decimal.

What is -2.32

300

Write 6.012 as a fraction in simplest form.

What is 6 3/250

400

Write -17/40 as a decimal.

What is -0.425

500

Write -12.405 as a fraction in simplest form.

What is -12 81/200

Comparing Rational Numbers

100

Compare -2.2 _____ -2.42

What is -2.2 > -2.42

200

Compare -1.82 _____ -1.81

What is -1.82 < -1.81

300

Compare 15/8 _____ 1 7/8

What is 15/8 = 1 7/8

400

Compare -3/5 _____ -0.65

What is -3/5 > -0.65

500

Which one is larger? Show your calculations to prove it!

-5 3/20 or -5.2

  

-5 3/20 = -5 15/100 = -5.15

Adding Rational Numbers

100

-7/8 + 1/4

What is -5/8

200

-6 1/3 + 20/3

What is 1/3

300

-12.5 + 15.3

What is 2.8

400

-8.15 + (-4.3)

What is -12.45

500

0.65 + (-2.75)

What is -2.1

Subtracting Rational Numbers

100

-3 1/3 - 5/6

What is -4 1/6

200

-20.5 - (-20.5)

What is 0

300

-8.4 - 6.7

What is -15.1

400

4 1/2 - 5 1/4

What is -3/4

500

-8 3/8 - 10 1/6

What is -18 13/24

Multiplying/DividingRational Numbers

100

1.8 (-5.1)

What is -9.18

200

-0.18/0.03

What is -6

300

5/6 (-8/15)

What is -4/9

400

5/6 (-4 1/2) (-2 1/5)

What is 8 1/4

500

a. -8/9 / -8/9 b. Identify the vocabulary term(s) that this example illustrates.

What is a. 1 b. reciprocal/multiplicative inverse property