(3 1/3 - 1 1/4) • 12

To solve the expression (3 1/3 - 1 1/4) • 12, we need to simplify the subtraction within the parentheses first:

3 1/3 - 1 1/4

First, we need to convert the fractions to have a common denominator:

The denominator for 1/3 and 1/4 is 12 since 3 and 4 are both factors of 12.

Converting 1/3 to twelfths: (1/3) * (4/4) = 4/12 Converting 1/4 to twelfths: (1/4) * (3/3) = 3/12

Now, let's subtract the fractions:

3 1/3 - 1 1/4 = 3 - 1 + 4/12 - 3/12 = 2 + 1/12

So, we have simplifed the expression within the parentheses to 2 + 1/12.

Now, we can multiply this result by 12:

(2 + 1/12) * 12 = 2 * 12 + (1/12) * 12 = 24 + 1 = 25

Therefore, the solution to the expression (3 1/3 - 1 1/4) • 12 is 25.