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Last updated on May 26th, 2025

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1 1/4 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: numerator (number on the top) here, 5 represents how many parts out of the whole. The denominator (number below) shows how many parts make the whole, here it is 4. A decimal is a way to represent the number that is not whole, using a (.) or a decimal to separate the whole part from the fraction part. The numbers to the left of the decimal point represent the whole, and those to the right represent the fractional part.

1 1/4 as a Decimal for Australian Students
Professor Greenline from BrightChamps

What is 1 1/4 as a decimal?

1 1/4 as a decimalAnswer

 

1 1/4 in decimals can be written as 1.25. It is a terminating decimal, meaning the division ends without repeating.

 

Explanation

 

To get 1 1/4 in decimal, we will convert the fraction part (1/4) into decimal form and add it to the whole number 1. Let's see the step-by-step breakdown of the process:

 

Step 1: Convert the fraction 1/4 into decimal form.

 

Step 2: Identify the numerator and denominator because the numerator (1) will be taken as the dividend and the denominator (4) will be the divisor.

 

Step 3: Divide 1 by 4. 1 is smaller than 4, so we need to add a decimal to the quotient place and a 0 to the dividend, making it 10.

 

Step 4: Divide 10 by 4. 4 goes into 10 two times (4 × 2 = 8). Write 2 in the quotient place and subtract 8 from 10, giving 2.

 

Step 5: Bring down another 0 to the dividend place, making it 20, then divide 20 by 4. 4 goes into 20 five times (4 × 5 = 20). Write 5 in the quotient place.

 

Step 6: No remainder is left, so the division process is complete. The fraction 1/4 is 0.25 in decimal form.

 

Step 7: Add the decimal 0.25 to the whole number 1 to get the final answer, 1.25.

Professor Greenline from BrightChamps

Important Glossaries for 1 1/4 as a decimal

  • Mixed Number: A number consisting of an integer and a proper fraction.
     
  • 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.
     
  • Terminating Decimal: A decimal that ends and does not repeat infinitely.
Professor Greenline from BrightChamps

About BrightChamps in Australia

At BrightChamps, math questions are more than just exercises—they’re opportunities to grow and explore! Our mission is to help children across Australia develop important skills, including today’s focus on the 1 1/4 as a Decimal with special attention on decimal conversions—in a fun, lively, and easy-to-understand way. Whether your child is calculating the speed of a roller coaster at Luna Park Sydney, tracking scores at a local cricket match, or managing their allowance for the latest gadgets, strong math skills give them confidence for daily challenges. Our lessons are interactive and designed to be enjoyable. Since kids in Australia learn in various ways, we customize our teaching to meet their individual styles. From Sydney’s vibrant streets to the beautiful Gold Coast beaches, BrightChamps brings math to life, making it relatable and exciting throughout Australia. Let’s make decimal conversions a fun part of every child’s math journey!
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