Operations with Fractions
4/5 - 3/9 =
7/15
12.24 + 3.9 =
16.14
What is the opposite of -4.5?
4.5
Tom paid $25.50 for 5 candy bars. What is the price of one candy bar?
$5.10
The temperature rose 21 degrees in 4.2 hours. What is the unit rate?
5 degrees per hour
8/9 divide 2/3 =
1 1/3
4.7 x 2.65 =
12.455
Convert into a decimal
6/8
.75
Convert into a decimal
7/8
.875
A large bag of coffee weighs 8 1/2 pounds. One serving is 1/2 pounds. How many servings are in the bag?
17 servings in a bag
7/9 + 5/12 =
1 7/36
6.19 - 3.05 =
3.14
Order the following rational numbers from greatest to least.
2/5, 0.2, and 4/15
2/5, 4/15 and 0.2
What is the absolute value of -2.5
2.5
A pound of cookies cost $2.90. Sam purchased 1/2 pound of cookies. How much did he pay for the cookies?
$1.45
1 1/3 xx 5/8 =
5/8
64 divided by 0.4 =
160
Convert -13/99 to a decimal.
-0.131313....
Which numbers are rational? Select all the apply.
7/10
0
7.12980286...
-0.124124124...
28
7/10, 0, -0.124124124..., 28
A)Mr. Gordon weighs 205 pounds. Multiply his weight on Earth by 0.91 to find how much he would weigh on the planet, Venus. How much does he weigh on Venus?
B)What is the difference between Mr. Gordon's Earth weight and his weight on Venus?
A) Mr. Gordon weighs 186.55 pounds on Venus
B) The difference is 18.45 pounds
2 2/3 / 1 3/4
11 11/21
25.2 div 0.6
42
When you simplify a fraction do you use GCF or LCM?
GCF
1,265 divided by 34 =
37
7/34
A)Mary needs to order pizza for 18 students. Each student gets 1/4 of a pizza. How many pizzas should Marry order?
B)How much pizza will be left?
A) 5 pizzas
B) 1/2 a pizza will be left.