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Last updated on May 26th, 2025

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1 1/5 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 from the whole. It has two parts: the numerator (number on the top) here, 6, represents how many parts out of the whole. The denominator (number below) shows how many parts make the whole, here it is 5. 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 fraction part. The numbers to the left of the decimal point represent the whole, and those to the right represent the fractional part.

1 1/5 as a Decimal for Vietnamese Students
Professor Greenline from BrightChamps

What is 1 1/5 as a decimal?

1 1/5 as a decimal

 

Answer

 

1 1/5 in decimal form can be written as 1.2. It is a terminating decimal, meaning it ends after a finite number of digits.

 

Explanation

 

To convert 1 1/5 into a decimal, we will use the division method for the fractional part. The mixed number consists of a whole number (1) and a fraction (1/5). Let's see the step-by-step breakdown of the process:

 

Step 1: Identify the whole number and the fraction. The whole number is 1, and the fraction is 1/5.

 

Step 2: Convert the fraction 1/5 into a decimal. The numerator (1) will be taken as the dividend, and the denominator (5) will be taken as the divisor.

 

Step 3: Divide 1 by 5. Since 1 is smaller than 5, we add a decimal point and a zero to make it 10.

 

Step 4: Divide 10 by 5, which gives 2. Write 2 to the right of the decimal point.

 

Step 5: Combine the whole number with the decimal.

 

The whole number is 1, and the decimal from the fraction is 0.2, resulting in 1.2.

Professor Greenline from BrightChamps

Important Glossaries for 1 1/5 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.

 

  • Mixed Number: A number consisting of a whole number and a fraction. Terminating Decimal: A decimal that ends and does not repeat infinitely.

 

  • Division: A mathematical operation where one number, the dividend, is divided by another, the divisor, to find how many times the divisor fits into the dividend.
Professor Greenline from BrightChamps

About BrightChamps in Vietnam

At BrightChamps, we believe math questions are more than just figures—they’re doors to many opportunities! We strive to help children throughout Vietnam build essential skills, such as today’s focus on the 1 1/5 as a Decimal with a special focus on decimal conversions—in a lively, enjoyable, and easy-to-follow style. Whether your child is calculating the speed of a roller coaster at Suoi Tien Theme Park, tracking scores in a local football match, or managing their allowance for new gadgets, mastering math gives them the confidence they need in everyday life. Our engaging lessons make learning straightforward and fun. Because children in Vietnam have different learning preferences, we personalize our approach to suit each child. From the bustling streets of Ho Chi Minh City to the beautiful Ha Long Bay, BrightChamps brings math to life, making it relatable and exciting across Vietnam. Let’s make decimal conversions an enjoyable part of every child’s math journey!
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