Proportional or not

Front

What does it mean for two ratios to be proportional?

Back

Two ratios are proportional if they express the same relationship between numbers, meaning they can be simplified to the same fraction.

Front

How can you determine if two ratios are proportional?

Back

You can determine if two ratios are proportional by cross-multiplying and checking if the products are equal.

Front

Is 6/5 proportional to 60/50?

Back

Yes, because 6/5 = 60/50 when cross-multiplied (6*50 = 5*60).

Front

Is 5/4 proportional to 35/28?

Back

Yes, because 5/4 = 35/28 when cross-multiplied (5*28 = 4*35).

Front

Is 8/9 proportional to 16/18?

Back

Yes, because 8/9 = 16/18 when cross-multiplied (8*18 = 9*16).

Front

Is 8/3 proportional to 32/12?

Back

Yes, because 8/3 = 32/12 when cross-multiplied (8*12 = 3*32).

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio to check for equality.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as a numerator over a denominator.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, and both represent a comparison of quantities.