IXL | Convert customary units using proportions

Which proportion could you use to convert 7 pounds to ounces?

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Convert.

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Learn with an example

question

Which proportion could you use to convert 4 pounds to ounces?

ounces

pound

ounces

pounds

ounces

pound

pounds

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Convert.

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solution

Write a proportion to convert 4 pounds to ounces. First, write a unit rate that relates pounds and ounces. Remember that there are 16 ounces in 1 pound.

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Now, write another rate with the numbers from the problem. Put ounces in the numerator and pounds in the denominator to match the unit rate.

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Use this proportion to convert 4 pounds to ounces. Compare the denominators.

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To get from 1 to 4, multiply by 4. Multiply the numerator and denominator by 4 to convert.

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So, 4 pounds = 64 ounces.

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