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>Hello Sohib EditorOnline, this article will guide you through the process of calculating fractions in a relaxed and easy-to-understand language. Fractions can be a bit challenging for some, but with this guide, you will be able to master it in no time.

What are Fractions?

Fractions are a part of a whole. They are commonly represented by a number divided by another number, separated by a slash. The number on the top is the numerator, while the number on the bottom is the denominator. For example, 1/2 or 5/8.

Understanding fractions is important in everyday life. You can use it for cooking, measuring, and even in finances.

The Basic Operations in Fractions

Adding and Subtracting Fractions

When adding or subtracting fractions, the first thing to do is to make sure that the denominators are the same. If they are not, you need to find the least common multiple (LCM) of the two denominators.

To find the LCM, you can list down the multiples of each denominator and find the first common multiple. For example, if you have 1/4 and 1/3, the multiples of 4 are 4, 8, 12, 16, and so on, while the multiples of 3 are 3, 6, 9, 12, and so on. The first common multiple is 12, so you need to convert 1/4 to 3/12, and 1/3 to 4/12.

Once you have the same denominators, you can simply add or subtract the numerators. For example, 3/12 + 4/12 = 7/12, and 3/12 – 4/12 = -1/12.

Multiplying and Dividing Fractions

Multiplying fractions is a lot easier compared to adding or subtracting. You simply multiply the numerators and multiply the denominators. For example, 1/2 x 3/4 = 3/8.

Dividing fractions, on the other hand, is a bit more complicated. You need to invert the second fraction and then multiply. For example, 1/2 ÷ 3/4 = 1/2 x 4/3 = 4/6 = 2/3.

Changing Fractions into Decimals

Decimals are a way to represent fractions in a different form. To change a fraction into a decimal, you simply divide the numerator by the denominator. For example, 3/4 can be represented as 0.75.

It is important to know how to convert fractions into decimals because decimals are commonly used in finances and measurements.

Changing Fractions into Percentages

Percentages are another way to represent fractions. To change a fraction into a percentage, you simply multiply it by 100. For example, 3/4 can be represented as 75%.

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Percentages are commonly used in finance, statistics, and even in everyday life, such as calculating your grade in school.

Common Fractions and their Decimal and Percentage Equivalents

Fraction Decimal Percentage
1/2 0.5 50%
1/4 0.25 25%
3/4 0.75 75%
1/3 0.33 33.33%
2/3 0.66 66.66%

Knowing the decimal and percentage equivalents of common fractions can be helpful in everyday life. You can quickly calculate the approximate value of a fraction by knowing its decimal or percentage equivalent.

Common Mistakes in Calculating Fractions

Mistake #1: Forgetting to Simplify the Fraction

When you are performing operations on fractions, it is important to simplify the fraction first before proceeding. For example, 4/8 should be simplified to 1/2 before adding or subtracting.

Mistake #2: Dividing Instead of Multiplying

Dividing fractions can be a bit tricky, especially when you are not familiar with the process. Some people make the mistake of dividing instead of multiplying when trying to find the quotient of two fractions.

Mistake #3: Not Checking for Errors

Always double-check your calculations to avoid making errors. It is easy to make mistakes when dealing with fractions, so it is important to take your time and be careful.

Conclusion

Congratulations, you have reached the end of this guide on calculating fractions. We hope that this article has helped you understand fractions better and has made it easier for you to perform operations on them. Remember to always simplify your fractions, check for errors, and practice until you have mastered the process.

Cara Menghitung Bilangan Pecahan