When we learn about ratios and proportions in 8th-grade math, we are looking at how different numbers relate to each other.
Ratios help us compare two amounts.
For example, if you have 2 apples and 3 oranges, the ratio of apples to oranges is written as 2:3. This means for every 2 apples, there are 3 oranges.
Proportions are a little different. They show that two ratios are the same.
Let’s say we have one basket with a ratio of apples to oranges as 2:3, and another basket with a ratio of 4:6.
We can say these proportions are equal:
2:3 = 4:6
Cross-Multiplication helps us figure out if two fractions are equal.
In our earlier example, we can check it like this:
2 × 6 = 12
3 × 4 = 12
Since both sides equal 12, we know the proportions are equal!
This method makes it easy to solve problems, especially when we need to find missing numbers.
When we learn about ratios and proportions in 8th-grade math, we are looking at how different numbers relate to each other.
Ratios help us compare two amounts.
For example, if you have 2 apples and 3 oranges, the ratio of apples to oranges is written as 2:3. This means for every 2 apples, there are 3 oranges.
Proportions are a little different. They show that two ratios are the same.
Let’s say we have one basket with a ratio of apples to oranges as 2:3, and another basket with a ratio of 4:6.
We can say these proportions are equal:
2:3 = 4:6
Cross-Multiplication helps us figure out if two fractions are equal.
In our earlier example, we can check it like this:
2 × 6 = 12
3 × 4 = 12
Since both sides equal 12, we know the proportions are equal!
This method makes it easy to solve problems, especially when we need to find missing numbers.