# What is 1/51 of 40?

Calculating the fraction of a whole number is a very useful skill to learn that helps students to understand the nature of numbers and their interactions. In this article, we'll explain how to calculate 1/51 of 40 with step-by-step-examples.

Looking for fractions of whole number worksheets? Click here to see all of our free fraction of a number worksheets.

## Calculating the Answer as a Number

The simple rule to remember whenever you want to find a fraction of an amount is to divide the amount by the fraction's denominator, and then multiply that answer by the fraction. Using this rule, you'll be able to work out the fractional amount of the original number. Let's work it out together.

First we take the amount, 40, and divide it by the denominator, 51:

40 ÷ 51 = 0.7843137254902

Next, we take the answer, 0.7843137254902, and multiply it by the numerator, 1:

0.7843137254902 × 1 = 0.7843137254902

As you can see, the answer to the question "what is 1/51 of 40?" as a number is 0.7843137254902.

## Increase or Decrease an Amount by a Fraction

What if you wanted to increase or decrease 40 by 1/51? Once you have calculated the answer above, 0.7843137254902, you deduct that amount from the whole number to decrease it by 1/51 and you add it to increase:

Increase = 40 + 0.7843137254902 = 40.78431372549

Decrease = 40 - 0.7843137254902 = 39.21568627451

## Calculating the Answer as a Fraction

Sometimes, you might want to show your answer as another fraction. In that case, we can do the following.

First, we take the whole number and turn it into a fraction by using 1 as the fraction denominator:

40 1

Now that we have two fractions, we can multiply the numerators and denominators together to get our answer in fraction form:

1 × 40 51 × 1 = 40 51

Hopefully this article helps you to understand how you can work with fractions of whole numbers and work this out quickly for yourself whenever you need it.

## Practice Fraction of Number Worksheets

Like most math problems, finding the fraction of a number is something that will get much easier for you the more you practice the problems and the more you practice, the more you understand.

Whether you are a student, a parent, or a teacher, you can create your own fractions of a whole number worksheets using our fraction of a number worksheet generator. This completely free tool will let you create completely randomized, differentiated, fraction of a number problems to help you with your learning and understanding of fractions.

## Practice Fractions of a Number Using Examples

If you want to continue learning about how to calculate the fraction of a whole number, take a look at the quick calculations and random calculations in the sidebar to the right of this blog post.

We have listed some of the most common fractions in the quick calculation section, and a selection of completely random fractions as well, to help you work through a number of problems.

Each article will show you, step-by-step, how to work out the fraction of any whole number and will help students to really learn and understand this process.

## Calculate Another Fraction of a Number

Enter your fraction in the A and B boxes, and your whole number in the C box below and click "Calculate" to calculate the fraction of the number.

of