College Math Placement Practice Test

What is the answer when subtracting 3/5 from 4 2/5 and expressing as a mixed number?

1. A. 2 1/5

2. B. 1 1/5

3. C. 3 1/5

4. D. 3 4/5

The correct answer is: D. 3 4/5

To find the result of subtracting \( \frac{3}{5} \) from \( 4 \frac{2}{5} \) and express it as a mixed number, we first need to convert the mixed number into an improper fraction. Start by converting \( 4 \frac{2}{5} \): - The whole part, \( 4 \), can be converted to the fraction \( \frac{20}{5} \) (since \( 4 = \frac{20}{5} \)). - Add the fractional part \( \frac{2}{5} \) to this, resulting in: \[ 4 \frac{2}{5} = \frac{20}{5} + \frac{2}{5} = \frac{22}{5}. \] Next, we can now perform the subtraction: \[ \frac{22}{5} - \frac{3}{5} = \frac{22 - 3}{5} = \frac{19}{5}. \] Now, we must convert \( \frac{19}{5} \) back into a mixed number. To do this, divide \( 19 \) by \( 5