5.3k Adding and subtracting positive rational numbers

5.3k Adding and subtracting positive rational numbers

Time to Practice.

• Simplify first. In the video she says, "reduce." That means simplify.

• To simplify, divide the numerator and denominator by a common factor.

• Then make an equivalent fraction with a denominator of 10, 100, 1000.

• YOU WILL NEED PAPER FOR THIS ASSIGNMENT!

Multiple Choice

Change

 $1\ \frac{12}{15}$  to a decimal.

• 1.45

• 1.8

• 0.125

• 1.15

Multiple Choice

Change

 $\frac{8}{32}$  to a decimal.

• 34.0

• 0.032

• 0.25

• 0.4

Multiple Choice

Change

 $\frac{3}{5}$  to a decimal.

• 0.6

• 0.35

• 0.3

• 0.53

Multiple Choice

Change

 $\frac{10}{25}$  to a decimal.

• 0.10

• 0.04

• 0.34

• 0.40

Multiple Choice

Change

 $\frac{7}{14}$  to a decimal.

• 0.7

• 17.14

• 0.5

• 0.14

Multiple Choice

Change

 $\frac{12}{16}$  to a decimal.

• 0.25

• 0.50

• 0.75

• 0.4

More practice!

• Multiply or divide by the same number to make an equivalent fraction

• You may need to simply the fractions first.

• Are you showing your work on paper?

Multiple Choice

 $\frac{7}{25}$  = 0.28

• true

• false

Multiple Choice

 $\frac{1}{5}$  = 0.2

• true

• false

Multiple Choice

 $\frac{3}{15}=0.2\$  

• true

• false

Multiple Choice

 $\frac{10}{25}=0.100$  

• true 

• false

Multiple Choice

 $\frac{12}{20}=\ 0.6$  

• true

• false

Read the problem carefully.

• Make an equivalent fraction with a denominator of 10, 100. 1000.

• Write the fraction as a decimal

• Solve.

• Make sure you are showing your work on paper.

Multiple Choice

Sally's mom said that the gasoline tank in her car was less than

 $\frac{3}{4}$  full and greater than 0.60 full.  How much gasoline could Sally's mom have in her gasoline tank?

• 0.82

• 0.72

• 0.574

• 0.78

Multiple Choice

Jessica is racing in a

 $2\ \frac{1}{4}$  mile bike race.  If Jessica biked 0.75 mile, how many miles does she have left to bike?

• 1.39 miles

• 2.5 miles

• 1.5 miles

• 0.15 miles

Multiple Choice

 $\frac{8}{40}-0.032\ =$  

• 3.8

• 0.168

• 1.68

• 0.8

Multiple Choice

You are making cranberry lemonade for the Tastiest Beverage contest. You are using 0.3 liter cranberry juice and  $\frac{1}{2}$  liter lemonade.  You drink  $\frac{1}{10}$  liter, just to be sure that it tastes delicious! How much cranberry lemonade do you have left?

• 0.7 liter

• 0.42 liter

• 0.32 liter

• 0.3 liter

Multiple Choice

What is the perimeter of the shape?

• 6.17 in

• 6.52 in

• 13.04 in

• 12.34 in

Multiple Choice

Samuel walks in the Labor Day parade. He walks

 $3\ \frac{12}{16}$  miles along the parade route and 2.83 miles home.  How many miles does Samuel walk?

• 5.831miles

• 5.84 miles

• 6.58 miles

• 6.27 miles

You are finished!

Please finish the rest of your asynchronous learning assignments.