40 percent of 30

Given: 40 percent of 30 (40% of 30)
Convert the given Percent to a decimal number (decimal form):

• As a decimal number, 40% = 40.0% = 0.4

Multiply 0.4 times the given Number:

• 0.4 * 30 = 12

Therefore, 40% of 30 = 12
Note: Alternative computation using the fraction form of 40%

• As a fraction in simplest form, 40% =
  40/100
  =
  2/5
• 2/5
  * 30 =
  60/5
  = 12, which equals 40 percent of 30