Guidance to help think through a multi-step conversion.

1. Given: 42 liters Need: quarts
Is there a conversion from liters to some type of
English unit?

2. Possible conversions:
1 liter = 33.81 US fluid ounces
1 gallon = 3.785 liters
Neither are a direct conversion! So, can
you find a second conversion step to
complete the problem?
Given: 42 liters Need: quarts

3. Given: 42 liters Need: quarts
Let’s look at this one first.
1 liter = 33.81 US fluid ounces
It will get us to ounces. Is there a conversion to
go from ounces to quarts?

4. Given: 42 liters Need: quarts
Let’s look at this one first.
1 liter = 33.81 US fluid ounces
It will get us to ounces. Is there a conversion to
go from ounces to quarts?
Nope! But there is one to go from ounces to
pints.
1 pint = 16 US fluid ounces
Is there a conversion to take us from pints to
quarts?

5. Given: 42 liters Need: quarts
Let’s look at this one first.
1 liter = 33.81 US fluid ounces
1 pint = 16 US fluid ounces
Yup!
1 quart = 2 pints
Therefore, the conversion chain would go:
Liters to ounces to pints to quarts 42 𝑙𝑖𝑡𝑒𝑟𝑠 ×
33.81 𝑜𝑢𝑛𝑐𝑒𝑠
1 𝑙𝑖𝑡𝑒𝑟
×
1 𝑝𝑖𝑛𝑡
16 𝑜𝑢𝑛𝑐𝑒𝑠
×
1 𝑞𝑢𝑎𝑟𝑡
2 𝑝𝑖𝑛𝑡𝑠
=

6. Try starting with this one!
1 gallon = 3.785 liters
Given: 42 liters Need: quarts