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Last updated on March 13th, 2025

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30/20 as a Decimal

Professor Greenline Explaining Math Concepts

It is a simple question on decimal conversion. Firstly, we have to understand fractions and decimals. A fraction represents a part of a whole. It has two parts: the numerator (the number on top) here, 30, which represents how many parts out of the whole are considered. The denominator (the number below) shows how many parts make up the whole; here it is 20. A decimal is a way to represent a number that is 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.

30/20 as a Decimal for Thai Students
Professor Greenline from BrightChamps

What is 30/20 as a decimal?

30/20 as a decimal

Answer

 

30/20 in decimals can be written as 1.5. It is a terminating decimal, meaning it does not repeat infinitely.

 

Explanation

 

To convert 30/20 into a decimal, we will use the division method. Here, 30 is larger than 20, so we can perform the division directly. Let's see the step-by-step breakdown of the process:

 

Step 1: Identify the numerator and denominator because the numerator (30) will be taken as the dividend, and the denominator (20) will be taken as the divisor.

 

Step 2: Perform the division 30 ÷ 20.

 

Step 3: 20 goes into 30 once, so we write 1 in the quotient place.

 

Step 4: Subtract 20 from 30, which gives us a remainder of 10.

 

Step 5: Bring down a 0 to make it 100, then divide by 20.

 

Step 6: 20 goes into 100 five times, so we write 5 in the quotient place. The division process ends as we have no remainder.

 

Therefore, 30/20 as a decimal is 1.5.

Professor Greenline from BrightChamps

Important Glossaries for 30/20 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 Thailand

At BrightChamps, math questions go beyond simple problems—they open the door to endless opportunities! Our goal is to help children throughout Thailand master important skills, such as today’s focus on the 30/20 as a Decimal, with a special focus on decimal conversions—in a way that’s engaging, fun, and simple to follow. Whether your child is calculating the speed of a roller coaster at Dream World, tracking scores at a local football match, or managing their allowance to buy the latest gadgets, solid math skills give them the confidence to handle everyday tasks. Our lessons are designed to be interactive and enjoyable. Because children in Thailand have different learning styles, we customize our teaching to suit each one. From the busy streets of Bangkok to the tropical islands of Phuket, BrightChamps brings math to life, making it relatable and exciting across Thailand. Let’s make decimal conversions a fun part of every child’s math journey!
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