# What is 10 percent of 21? (10% of 21?)

## Percentage Calculator: 10 Percent of 21

Here is a calculator to solve percentage calculations such as what is 10% of 21. You can solve this type of calculation with your values by entering them into the calculator's fields, and click 'Calculate' to get the Result and Explanation!

What is% of

### Calculation of What is 10 percent of 21:

10 percent * 21 =

(10 / 100) * 21 =

(10 * 21) / 100 =

210 / 100 =

2.1

Now we have the answer: 10% of 21 = 2.1. Alternatively, we can express it as: 2.1 is equivalent to 10 percent of 21.

Mathematical Notation: 10% * 21 = (10 / 100) * 21 = (10 * 21) / 100 = 210 / 100 = 2.1

### Formula we can use to solve our problem:

Formula: X/100 × Y

Let's use the example of "What is 10% of 21?" to understand the calculation:

= 10/100 × 21 = 2.1

Check our "What is X Percent of Y" Calculator for more methods and formulas

## Solution for "What is 10 percent of 21" with Step-by-step guide:

Step 2: Use the variable 'x' to represent the unknown value.

Step 3: From Step 1, we know that 2.1 is equivalent to 100%.

Step 4: Similarly, we can determine that 'x' represents 10% of the value.

Step 5: This leads us to two simple equations:

• Equation 1: 21 equals 100%
• Equation 2: 'x' equals 10%

Step 6: To solve for 'x', we divide equation 1 by equation 2, considering that both equations have the same unit (%). Thus, we obtain:
21 / x = 100% / 10%

Step 7: By taking the reciprocal of both sides of the equation obtained in Step 6, we have:
x / 21 = 10 / 100
⇒ x = 2.1

Therefore, we conclude that 10% of 21 is equal to 2.1.

I hope explanation above helps you understand how to calculate 10 percent of 21

### Quick Tip - How Calculate 10 percent of 21 on calculator

If you want to use a calculator to know what is 10 percent of 21, simply enter 10 ÷ 100 × 21 and you will get your answer which is 2.1

## Frequently Asked Questions on What is 10 percent of 21

1. How do I calculate percentage of a total?

To calculate percentages of a total: determine the part, divide it by the total, and multiply by 100.

2. What is 10% of 21?

10 percent of 21 is 2.1.

3. How to calculate 10 percent of 21?

Multiply 10/100 by 21 = (10/100) * 21 = (10 * 21) / 100 = 2.1.

2. 10 of 21?

10 of 21 = 2.1.

4. what is 10 percent of 21 dollars?

2.1 dollars.