How to Calculate 7% of 40: A Step-by-Step Solution

Question

Calculate 7% of 40:

Video Solution

Solution Steps

00:00 Calculate 7 percent of 40
00:07 In order to calculate a certain percentage, convert from percentages to fractions
00:18 For example, 7 percent is 7 divided by 100
00:28 Apply this formula to our exercise, and multiply 7 percent by 40
00:35 Place the multiplication in the numerator
00:44 Break down 40 into factors of 2 and 20
00:48 Break down 100 into factors of 20 and 5
00:51 Reduce wherever possible
01:03 This is the solution

Step-by-Step Solution

To solve this problem, we will follow a simple process using the percentage formula.

  • Step 1: Identify the percentage and the quantity. Here, the percentage is 7%, and the quantity is 40.
  • Step 2: Apply the percentage formula: Percentage Value=7100×40\text{Percentage Value} = \frac{7}{100} \times 40.
  • Step 3: Calculate the result. First, compute the multiplication: 7×40=2807 \times 40 = 280. Following that, divide by 100: 280100=2.8\frac{280}{100} = 2.8.

Therefore, the solution to the problem is 2.8 2.8 .

Answer

2.8