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Last updated on May 26th, 2025

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3 1/8 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 the whole. It has two parts: the numerator (number on the top) and the denominator (number below). A mixed number, like 3 1/8, has a whole number and a fractional part. A decimal is a way to represent a number that is not whole, using a (.) or 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.

3 1/8 as a Decimal for Singaporean Students
Professor Greenline from BrightChamps

What is 3 1/8 as a decimal?

3 1/8 as a decimalAnswer

 

3 1/8 in decimals can be written as 3.125. It is a terminating decimal.

 

Explanation

 

To convert 3 1/8 to a decimal, we convert the fractional part first and then add it to the whole number. Let's break down the process:

 

Step 1: Identify the fractional part 1/8.

 

Step 2: Divide the numerator (1) by the denominator (8) using long division.

 

Step 3: 1 divided by 8 gives 0.125.

 

Step 4: The whole number part is 3.

 

Step 5: Combine the whole number 3 and the decimal 0.125 to get 3.125.

 

The answer for 3 1/8 as a decimal is 3.125.

Professor Greenline from BrightChamps

Important Glossaries for 3 1/8 as a decimal

  • Mixed Number: A number consisting of an integer and a proper fraction.
     
  • 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 Singapore

At BrightChamps, we believe math questions are more than just exercises—they’re opportunities for growth! Our mission is to support children across Singapore in developing important skills, such as today’s focus on the 3 1/8 as a Decimal with a key emphasis on decimal conversions—in an engaging, enjoyable, and easy-to-understand way. Whether your child is calculating the speed of a roller coaster at Universal Studios Singapore, tracking scores at a local football match, or managing their allowance for the latest gadgets, strong math skills build their confidence to face daily tasks. Our lessons are interactive and fun. Since kids in Singapore have diverse learning styles, we customize our teaching to suit each child. From the bustling city streets to the scenic gardens, BrightChamps makes math come alive, making it relevant and exciting throughout Singapore. Let’s make decimal conversions an enjoyable part of every child’s learning journey!
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