BrightChamps Logo
Hamburger Menu Icon for BrightChamps Website Navigation
Login
Creative Math Ideas Image
Live Math Learners Count Icon189 Learners

Last updated on May 26th, 2025

Math Whiteboard Illustration

21/25 as a Decimal

Professor Greenline Explaining Math Concepts

It is a simple question on decimal conversion. Firstly, we have to learn fractions and decimals. A fraction represents a part of a whole. It has two parts: the numerator (the number on the top), here 21, which represents how many parts out of the whole, and the denominator (the number below), here 25, which shows how many parts make up the whole. A decimal is a way to represent a number that is not whole, using a (.) or a decimal to separate the whole part from the fractional part. The numbers to the left of the decimal point represent the whole part, and those to the right represent the fractional part.

21/25 as a Decimal for UK Students
Professor Greenline from BrightChamps

What is 21/25 as a decimal?

21/25 as a decimal

 

Answer

 

21/25 as a decimal can be written as 0.84. It is a terminating decimal, meaning it does not repeat infinitely.

 

Explanation

 

To convert 21/25 to a decimal, we will use the division method. Here, 21 is smaller than 25, so we will use the decimal method to convert it to 0.84. Let's see the step-by-step breakdown of the process:

 

Step 1: Identify the numerator and denominator because the numerator (21) will be taken as the dividend and the denominator (25) as the divisor.

 

Step 2: Since 21 is smaller than 25, it can't be divided directly, so we will take the help of decimals. We will add 0 to the dividend, making it 210, and add a decimal point in the quotient place.

 

Step 3: Now, divide 210 by 25. 25 goes into 210 eight times, because 25 × 8 = 200.

 

Step 4: Subtract 200 from 210 to get 10.

 

Step 5: Bring down another 0 in the dividend place, making it 100, and divide by 25. 25 goes into 100 four times, because 25 × 4 = 100.

 

Step 6: Subtract 100 from 100 to get 0 as the remainder. Since the remainder is 0, the process ends here, resulting in a terminating decimal.

 

The answer for 21/25 as a decimal is 0.84.

Professor Greenline from BrightChamps

Important Glossaries for 21/25 as a decimal

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

 

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

 

  • Numerator: The top part of a fraction, indicating how many parts of the whole are being considered.

 

  • Denominator: The bottom part of a fraction, showing how many parts make up a whole.

 

  • Terminating Decimal: A decimal that ends and does not repeat infinitely.
Professor Greenline from BrightChamps

About BrightChamps in United Kingdom

At BrightChamps, we see math questions as more than just sums—they’re gateways to endless opportunities! Our mission is to help children throughout the United Kingdom develop essential skills, focusing today on the 21/25 as a Decimal with special attention to decimal conversions—in a lively, enjoyable, and easy-to-understand way. Whether your child is working out the speed of a roller coaster at Alton Towers, following scores at a local football match, or managing their pocket money to buy the latest gadgets, mastering math empowers them to face daily challenges confidently. Our interactive sessions ensure learning is both simple and enjoyable. Because every child in the UK has their own learning style, we tailor our approach to fit them perfectly. From the bustling streets of London to the scenic coasts of Cornwall, BrightChamps makes math relatable and fun throughout the UK. Let’s make decimal conversions a delightful part of your child’s math journey!
INDONESIA - Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta
INDIA - H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034
SINGAPORE - 60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)
USA - 251, Little Falls Drive, Wilmington, Delaware 19808
VIETNAM (Office 1) - Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City
VIETNAM (Office 2) - 143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam
Dubai - BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates
UK - Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom