Write 12 1/3 as an improper fraction.

Step-by-step explanation:

When converting mixed numbers (such as the one above), to improper fractions, we must first multiply the whole number by the denominator:

Then, add the numerator the the product:

Now, put the sum over the denominator to get your solution:

-

To check your work, you can convert the improper fraction to a mixed number to make sure you will end up with .

Divide into :

with a remainder of

Put the remainder over the denominator:

Therefore, our solution is correct!

37/3

Step-by-step explanation:

12 1/3 = 12*3+1/3 = 37/3

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step-by-step explanation:

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the answer is 31.27mph