Calculate the Percentage of 4.5 Over 90: Conversion Challenge

Video Solution

Solution Steps

00:04 Let's find out what 4.5 is as a percentage of 90.

00:09 We'll use the formula to calculate percentages.

00:16 First, divide 4.5 by 90. Then, multiply the result by 100.

00:28 Try to simplify by breaking down into factors and reducing.

00:47 And that's how we find the solution. Great job!

Step-by-Step Solution

To solve the problem of calculating what percentage 4.5 is of 90, we will employ the percentage formula:

Step 1: Identify the given numbers. We have $4.5$ as the part and $90$ as the whole.

Step 2: Apply the formula for percentage:\
$\text{Percentage} = \left( \frac{\text{part}}{\text{whole}} \times 100 \right)\%$

Step 3: Insert the given values into the formula:
$\( \text{Percentage} = \left( \frac{4.5}{90} \times 100 \right)\%$

Step 4: Calculate the fraction $\frac{4.5}{90}$ :
$\frac{4.5}{90} = 0.05$

Step 5: Convert the fraction to a percentage by multiplying by 100:
$0.05 \times 100 = 5$

Therefore, 4.5 is 5% of 90, which corresponds to choice id="1".

Thus, the solution to the problem is that 4.5 over 90 as a percentage is 5%.