What is -1.15 as a fraction?

In this article, we will guide you step by step through the process of converting the decimal -1.15 into a fraction. We will start by understanding how a decimal represents the fractional part of a number, then break down the steps to rewrite -1.15 as a fraction. Finally, we will simplify the fraction by identifying and applying the Greatest Common Factor, ensuring the results are in the simplest form.

By the end of this guide, you should have a good understanding of decimal to fraction conversions and be able to apply this knowledge to various mathematical problems. Let's begin.

-1.15 as a fraction equals -115/100 or 23/-20

Now let's break down the steps for converting -1.15 into a fraction.

Step 1:

First, we express -1.15 as a fraction by placing it over 1:
-1.15/1

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point.
-1.15 x 100/1 x 100
  =  
-115/100

Step 3:

Next, we find the Greatest Common Factor (GCF) for -115 and 100. Keep in mind a factor is just a number that divides into another number without any remainder.
The factors of -115 are:
The factors of 100 are: 1 2 4 5 10 20 25 50 100
The GCF of -115 and 100 is: -5

Step 4:

To simplify the fraction, we divide both the numerator and denominator by their greatest common factor (GCF), which we calculated in the previous step. The GCF value is -5 in this case.
-115 ÷ -5/100 ÷ -5
  =  
23/-20


Great Work! We've just determined that -1.15 as a fraction equals -115/100 or 23/-20 in its simplest form.

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Frequently asked math questions, including decimals and fractions

Read the following section to help deepen your understanding of basic math concepts.

What are whole numbers?

Whole numbers are numbers 0, 1, 2, 3, etc. Whole numbers do not have a decimal point or fractional part. Whole numbers are always positive. Negative numbers are not considered whole.

What are mixed numbers?

A mixed number is made up of a whole number and a proper fraction.

What are composite numbers?

Composite numbers are numbers that are greater than 1 and have more than two factors. For example, 6 is a composite number because it has factors 1, 2,3 and 6.

What are rational numbers?

A rational number is any number that can be expressed as the fraction of two integers, such as 3/4, -5/2, or 0.75.

What is a ratio?

A ratio is a relationship between two numbers that shows how many times one value is contained within another. For example, the ratio 3:1 means there are 3 parts of one quantity for every 1 part of another.

What is a median?

The median is the mid value in a set of numbers when the numbers are arranged in order. If there are two middle numbers, the median is the average of those both those numbers.


Educational math links

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Build math skills with Brilliant.org interactive problem solving puzzles designed for adults. Algebra, geometry, logic, and probability are covered with video guides.

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