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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