# ratios-activities

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RATIOS IN THE KITCHEN
I’m the Crazy 80s Baby rapping math on the radio,
In the kitchen cooking gravy, yo, I use a ratio.
Comparing parts to wholes and parts to parts,
That’s a ratio, I’ve mastered the art.
The Crazy 80s Baby is preparing to make his Crazy Gravy. Use his gravy recipe to answer questions 1-4.
Recipe: •
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•
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1.
1 stick of butter
3 onions
4 carrots
6 tomatoes
2 teaspoons of salt
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1 teaspoon of black pepper
5 cups of chicken stock
2 bananas
3 cups of chocolate chips
A. What is the ratio of onions to carrots?
B. Write the ratio of onions to carrots in two different ways than you wrote it in part A.
C. Is the ratio of onions to carrots a part-to-part or part-to-whole ratio? Why?
2. The Crazy 80s Baby keeps track of how many carrots and tomatoes he uses in the ratio
table below.
Carrots
Tomatoes
2
4
6
8
12
21
16
24
A. The Crazy 80s Baby decides he wants to make half the amount of gravy that the recipe
calls for. He uses 2 carrots instead of 4. How many tomatoes will he need? Fill in the
missing value in the ratio table.
B. If he uses 21 tomatoes, how many carrots will he need? Fill in the missing value in the
ratio table.
page • 1
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3.
Date
A. Use the recipe to find the ratio of bananas to tomatoes in simplest form. Put the ratio data in
the first row of the ratio table below.Then, fill in more values in the ratio table to create two
equivalent ratios.
Bananas
Tomatoes
B. Write one of the equivalent ratios that you created in your table, and explain why it is
equivalent to the original ratio
C. If the Crazy 80s Baby decides to make a batch of gravy using 36 tomatoes, how many
bananas will he need? Fill in the values in the last row of your ratio table to find the answer.
4.
A. Use the recipe to find the ratio of teaspoons of salt to teaspoons of black pepper in simplest
form. Put the ratio data in the first row of the ratio table below.Then, fill in more values in the
ratio table to create two equivalent ratios.
Teaspoons of Salt
Teaspoons of
Black Pepper
B. Write one of the equivalent ratios that you created in your table, and explain why it is
equivalent to the original ratio.
C. If the Crazy 80s Baby makes a batch of gravy with 14 teaspoons of salt, how many
teaspoons of black pepper will he need? Use your ratio table to find the answer.
page • 2
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Date
Use ratio tables or another method to answer questions 5-9.
5.
The Crazy 80s Baby goes shopping for ingredients at the grocery store. For every 7 carrots
that he sees at the store, 2 are rotten. If there are 21 carrots at the store, how many are rotten?
6.
The grocery store is having a sale. For every 3 sticks of butter purchased, customers
receive 1 free wedge of cheese. If the Crazy 80s Baby buys 12 sticks of butter, how many free
wedges of cheese will he receive?
7.
The Crazy 80s Baby decides to make a Crazy Cake for dessert. The cake uses eggs and
potatoes in a ratio of 2:5. If he uses 6 eggs, how many potatoes will he need?
8.
The Crazy 80s Baby has guests over to share his gravy. He plans to give each guest 1 cup
of gravy for every 2 pieces of turkey he or she takes.
A. If a guest takes 4 pieces of turkey, how many cups of gravy will she get?
B. 10 guests come over, and each guest takes 3 pieces of turkey. How many cups of gravy
will the Crazy 80s Baby give out in total?
9.
The Crazy 80s Baby’s brother comes over and brings his regular gravy. His friend likes
the Crazy Gravy more.
For every spoon of regular gravy he takes, he takes 4 spoons of Crazy Gravy.
A. If the friend take 8 spoons of regular gravy, how many spoons of Crazy Gravy will he take?
B. The friend takes 12 spoons of Crazy Gravy. How many spoons of both kinds of gravy will
he take in total?
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