21 minutes as a decimal

Answer

21 minutes as a decimal of an hour can be written as 0.35. This decimal shows the fraction of an hour that 21 minutes represents.

Explanation

To convert 21 minutes into a decimal, we use division. Since there are 60 minutes in an hour, 21 minutes is a fraction of an hour. Let's see the step-by-step breakdown of the process:

Step 1: Identify the part (21 minutes) and the whole (60 minutes in an hour).

Step 2: Use the division method: divide 21 by 60 to get the decimal.

Step 3: Perform the division: 21 ÷ 60 = 0.35.

Step 4: The result, 0.35, is the decimal representation of 21 minutes as a fraction of an hour.

• Minute: A unit of time equal to 1/60th of an hour.

• Decimal: A number that uses the base ten and includes a decimal point to separate the whole part from the fractional part.

• Division: A mathematical operation where one number is divided by another to find a quotient.

• Fraction: A numerical quantity that is not a whole number, representing a part of a whole.

• Quotient: The result obtained by dividing one number by another.