Write the ratio
What are the 3 different ways to write a ratio
colon (:) , the word 'to', or as a fraction.
Are these ratios equivalent?
6:11 42:88
For full points, you must be able to explain why or why not.
NO! 6 x 7 =42 and 11 x 7 = 77. They did not multiply both numbers by the same number. They multiplied 11 by 8.
What is this ratio in simplest form? 6:36
1:6
What can a ratio never be?
Negative or both 0.
2 to 9, 2:9
How do you create an equivalent ratio?
Multiply both numbers of the ratio by the same number.
A recipe calls for 3 cups of flour for every 2 cups of sugar. If you have 6 cups of sugar, how much flour would you need?
9 cups of flour.
You take a trip to the lake. You notice that there are 8 large fish for every 10 small fish. What number would make this sentence correct: For every 4 large fish there are ___ small fish.
5
Create 2 equivalent ratios for 7:6 and 2:5.
Answers will vary
A fruit basket is filled with 8 bananas, 3 oranges, 5 apples, and 6 kiwis. For every 3 kiwis, there are 4 _______.
Bananas
In a bag of red sweets and green sweets, the ratio of red to green is 3:4. If there are 120 green sweets, how many red sweets are there?
There are 90 red sweets.
Carlos and Aldo went fishing using live shrimp as bait. Carlos brought 8 more shrimp than Aldo brought. When they combined their shrimp they had 40 all together.
How many shrimp did each boy bring?
Carlos brought 24
Aldo brought 16
Create 2 equivalent ratios for 3:5 and 7:9
Answers will vary
Are these ratios equivalent?
4:3 and 60:45
For full points, you must write why or why not.
YES! They are equivalent because if you multiply 4:3 by 15 you would get 60:45
Miss Cuccia and Mrs. DeCarlo were folding report cards to send home to parents. The ratio of the number of report card Miss Cuccia folded to the number of report cards Mrs. DeCarlo folded is 2:3. At the end of the day, Miss Cuccia and Mrs. DeCarlo folded a total of 300 report cards. How many did each person fold?
Miss Cuccia folded 120
Mrs. DeCarlo folded 180.
What is simplest form?
The simplest/smallest version of an ratio.
What is a ratio?
An ordered set of #'s
Are these ratios equivalent?
0:5 and 0: 20
YES! 0 x 4 = 0 and 5 x 4 = 0. You multiply both numbers in the ratio by the same number.
Miss Durland wants to save money, but she has not been very good at it. The ratio of the amount of money in her saving's account to the amount of money in her checking's account is 1:6. Since she is trying to get better at saving money, she moves some money out of her checking account and into her savings. Now the ratio of the amount of money in her savings account to the amount of money in her checkings account is 4:3. If Miss Durland had $936 in her checking account before moving money, how much money does she have in each account after moving money?
Savings account: 624
Checking account: 468
Sophie was trying to calculate the number of students in her school.She found the ratio of boys to girls across the school was 3:2
If there were 120 boys in the school
80 girls
200 all together