Cross-multiplication is a simple trick that makes solving proportions much easier, especially when you're in Year 10 math. Let’s break it down:
What Are Proportions?: A proportion is like an equation that says two ratios are equal. For example, it looks like this: .
How to Cross-Multiply: Instead of dealing with fractions, you can cross-multiply. This means you multiply the top number (numerator) of one ratio by the bottom number (denominator) of the other ratio. So, using our example, you would calculate .
Why Is This Helpful?: This trick turns the equation into a simpler form that doesn't have fractions. This makes it easier to find the variable you want to solve for. It's all about making things less complicated!
In my experience, once you get the hang of cross-multiplication, solving these problems becomes really easy! You can concentrate on the numbers and not worry about fractions.
Cross-multiplication is a simple trick that makes solving proportions much easier, especially when you're in Year 10 math. Let’s break it down:
What Are Proportions?: A proportion is like an equation that says two ratios are equal. For example, it looks like this: .
How to Cross-Multiply: Instead of dealing with fractions, you can cross-multiply. This means you multiply the top number (numerator) of one ratio by the bottom number (denominator) of the other ratio. So, using our example, you would calculate .
Why Is This Helpful?: This trick turns the equation into a simpler form that doesn't have fractions. This makes it easier to find the variable you want to solve for. It's all about making things less complicated!
In my experience, once you get the hang of cross-multiplication, solving these problems becomes really easy! You can concentrate on the numbers and not worry about fractions.