Proportions are like equations that show two fractions are equal.
For example, if we say ( \frac{a}{b} = \frac{c}{d} ), we are talking about a proportion.
A cool trick to solve proportions is called cross-multiplication. Here’s how it works:
You multiply the top number (numerator) of one fraction by the bottom number (denominator) of the other fraction.
It looks like this: ( a \times d = b \times c ).
If you need to find a missing number, you set up the proportion first, use cross-multiplication, and then solve the equation.
This method is really helpful for everyday problems, like adjusting recipes or comparing prices!
Proportions are like equations that show two fractions are equal.
For example, if we say ( \frac{a}{b} = \frac{c}{d} ), we are talking about a proportion.
A cool trick to solve proportions is called cross-multiplication. Here’s how it works:
You multiply the top number (numerator) of one fraction by the bottom number (denominator) of the other fraction.
It looks like this: ( a \times d = b \times c ).
If you need to find a missing number, you set up the proportion first, use cross-multiplication, and then solve the equation.
This method is really helpful for everyday problems, like adjusting recipes or comparing prices!