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133 LearnersLast updated on March 4th, 2025
21 minutes as a decimal
This is a simple question on converting time to decimals. Understanding time and decimal representation is essential. When considering minutes as a part of an hour, we think of 60 minutes as a whole. A decimal is a way to represent numbers that are not whole, using a decimal point (.) to separate the whole part from the fractional part. The numbers to the left of the decimal point represent the whole, and those to the right represent the fractional part.
What is 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.
Important Glossaries for 21 minutes as a decimal
- 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.
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