Ratios
In a drawing, there are three circles, four stars, and three triangles. What is the ratio of stars to the total number of shapes.
What is 2/5 or 4/10
5 shovels of sand are mixed with 4 shovels of gravel to make cement. What is the number of shovels of gravel needed for 45 shovels of sand.
What is 36?
Write 6 girls to 8 boys as a ratio in 3 ways.
What is 6/8, 6 to 8, 6:8
or 3/4, 3 to 4, and 3:4
detergent: $1.99 for 32 fl oz or $2.49 for 50 fl oz
What is $2.49.
Are 2/3 and 4/6 equivalent?
What is Yes, equivalent, 2 x 2 = 4, 3 x 2 = 6
Lil blew up 7 balloons. Kathy blew up 5 balloons. What is the ratio of total balloons to Kathy's balloons?
12 to 5
Ari can walk 2 miles in 40 min. What is the amount of time it will take him to walk 4 miles.
What is 80 min.?
Twenty students are asked to choose their favorite music category. Eight chose pop, seven chose hip hop, and five chose rock. Write each ratio in all three forms.
Rock to pop and hip hop
What is 5/15, 5 to 15, and 5:15
or
1.3, 1 to 3, and 1:3
popcorn $1.69 for 15 oz or $2.99 for 30 oz
What is $2.99
Are 1/6 and 2/7 proportional?
What is no Not Equivalent
The recipe calls for 2 eggs, 8 cups of flour, 3 teaspoons of oil, and a pinch of salt. What is the ratio of cups of flour to eggs?
8:2 OR 4:1
Paul used 6 black tiles and 12 white tiles for a pattern. What is the ratio of black tiles to white tiles.
1:2 or 6:12
Ann’s Trail Mix Recipe calls for 5 cups of oats, 3 cups of seeds, 1 cup of nuts, and 2 cups of raisins.
Write the ratio of oats to seeds in three different ways
What is 5/3, 5 to 3, and 5:3
apples $1.89 for 3lb or $2.49 for 5 lb
What is $2.49
Are 4/7 and 36/63 equivalent?
What is, Yes, equivalent, 4 x 9 = 36, and 7 x 9 = 63
There are 10 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?
3 white rabbits
30 buses can carry 1500 people. What is the number of people that can be carried by 5 buses.
250 people
Ann’s Trail Mix Recipe calls for 5 cups of oats, 3 cups of seeds, 1 cup of nuts, and 2 cups of raisins.
Write the ratio of nuts to raisins in three different ways
1/2, 1 to 2, and 1:2
bagels $0.89 for 4 or $1.39 for 6
What is $0.89
Are 14/15 and 42/45 equivalent?
What is Yes equivalent, 14 x 3 = 42, 15 x 3 = 45
There are 5 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?
3 mice
Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. What is the number of crates that 8 trucks can carry.
320 crates
Ann’s Trail Mix Recipe calls for 5 cups of oats, 3 cups of seeds, 1 cup of nuts, and 2 cups of raisins.
Write the ratio of oats and seed to total cups of ingredients in three different ways.
What is 8/11 8 to 11, and 8:11
$1.25 for 4 or $5.69 for 25
What is $5.69
The definition of equivalent ratios
What is two ratios that express the same relationship between numbers