Introduction
It’s a common question that we encounter in our daily lives, and it’s important to understand the concept of ratios, percentages, and fractions. Today, we’ll be discussing what is 30 of 15, and how to calculate it.
Understanding Ratios
Before we dive into the calculation, let’s take a moment to understand ratios. A ratio is a comparison of two numbers, and it can be expressed in different ways. For example, the ratio of boys to girls in a class can be expressed as 2:3 or 2/3.
What is 30 of 15?
To calculate 30% of 15, we need to understand percentages. A percentage is a fraction of 100, and it represents a portion of a whole. For example, 50% means 50 out of 100 or 0.50. So, to calculate 30% of 15, we need to first convert 30% into a fraction or decimal. We can do that by dividing 30 by 100, which gives us 0.30. Next, we multiply 0.30 by 15 to get the answer. Therefore, 30% of 15 is 4.5.
Examples
Let’s look at some examples to understand the concept better. Example 1: What is 20% of 50? Solution: To calculate 20% of 50, we first convert 20% into a decimal by dividing 20 by 100, which gives us 0.20. Next, we multiply 0.20 by 50 to get the answer. Therefore, 20% of 50 is 10. Example 2: What is 75% of 80? Solution: To calculate 75% of 80, we first convert 75% into a decimal by dividing 75 by 100, which gives us 0.75. Next, we multiply 0.75 by 80 to get the answer. Therefore, 75% of 80 is 60.
Conclusion
In conclusion, understanding ratios, percentages, and fractions is essential in our daily lives. Knowing what is 30 of 15 can help us make better decisions, especially when it comes to finances and budgeting. So, the next time someone asks you what is 30 of 15, you’ll know exactly how to answer.