Operations with Fractions
Solve:
5/4 + 2/3
23/12
One jar of crushed ginger costs $2. How many jars can you buy for $4?
2
What is 25% of 80?
20
Write an equation for the following situation:
The water level in a reservoir is now 52 meters. if this was a 23% increase, what was the initial depth?
x *.23 + x = 52
x(1 + .23) = 52
x(1.23) = 52
1.23x = 52
What should you do when Ms. Stipe is talking to the class (Example: During notes or going over example problems)?
Listen quietly and pay attention.
Solve:
5/6 - 1/3
9/18 or 1/2
One cantaloupe costs $2. How many cantaloupes can you buy for $6?
3
What is 40% of 150?
60
The snow is now 52 inches deep. If this was a 77% decrease, what was the initial depth?
x - .77x = 52
x(1 - .77) = 52
x(0.23) = 52
0.23x = 52
What should you do if you don't understand something Ms. Stipe said?
Raise your hand and ask for help.
Solve:
3/5 xx 4/7
12/35
Jane bought 32 kiwi fruit for $16. How many kiwi can Lisa buy if she has $4?
8
What is 60% of 80?
48
Write an equation to represent the following situation:
A movie theater decreased the size of its popcorn bags by 20%. If the old bags held 15 cups of popcorn, how much do the new bags hold.
15 - .20*15 = C
15(1 - .20) = C
15(.80) = C
.80*15 = C
How can you help when you’re working in a group?
Listen to others, share your ideas, and help with the work.
Solve:
2/3 \div 4/5
10/12 OR 5/6
Molly bought two heads of cabbage for $1.80. How many heads of cabbage can Willie buy if he has $28.80?
32
The regular price of a T-shirt is $18. The store offers a 20% discount. What is the new price of the T-shirt.
$14.40
Write an equation to represent the following situation:
After a 25% discount, the price of a T-shirt was $12. What was the price before the discount?
12 - .25*12 = P
12(1-.25) = P
12(.75) = P
.75 * 12 = P
What should you do if your phone rings in class?
Put it away and stay focused on the lesson.
Solve:
2 2/3 \div 1/5
40/3
The currency in Argentina is the Peso. The exchange rate is approximately $3 = 1 Peso. At this rate, how many Pesos would you get if you exchanged $121.10?
40.4 Pesos
Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler’s brother make per hour?
Tyler will make $12.60 an hour.
Write an equation to represent each of the following situation:
Compared to last year, the population of Boom Town has increased by 25%.The population is now 6,600. What was the population last year?
P + .25P = 6,600
P(1+.25) = 6,600
P(1.25) = 6,600
1.25P = 6,600
How should you act if you disagree with someone in class?
Stay calm, listen to them, and talk respectfully without interrupting.