What is 21 plus 40 percent?

What is 21 plus 40 percent (21 plus 40%)? Simply put, what do you get if you add 40 percent to 21? Here we will show you how to calculate 21 plus 40 percent using a two-step process.

Step 1) Calculate 40 percent of 21: To calculate 40 percent of 21, you multiply 40 by 21 and then divide the product you get by 100. Here is the math to illustrate:

40 x 21 = 840
840 / 100 = 8.4

Step 2) Add the 40 percent you calculated in Step 1 to 21. Here is the math to illustrate:

21 + 8.4 = 29.4

Therefore, the answer to "What is 21 plus 40 percent?" is:

29.4

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