math
posted by Jean .
A custom order requires 13 1/4 grams of material that costs 11 1/2 ¢ per gram. Find the total cost of the material.

The simplest way is to change the fractions to decimals and multiply.
13.25 * 11.5 = ?
If your teacher wants you to use the fractions, then change the two numbers to mixed fractions.
53/4 * 23/2 = 1219/8 = 152 3/8
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