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.

Tags

CCSS.7.RP.A.2A

Front

How can you determine if two fractions are proportional?

Back

To determine if two fractions are proportional, cross-multiply and see if the products are equal.

Front

Are the fractions 3/8 and 8/12 proportional?

Back

No, because 3 * 12 ≠ 8 * 8.

Tags

CCSS.7.RP.A.2A

Front

Are the fractions 8/9 and 26/39 proportional?

Back

No, because 8 * 39 ≠ 9 * 26.

Tags

CCSS.7.RP.A.2A

Front

Are the fractions 8/9 and 16/18 proportional?

Back

Yes, because 8 * 18 = 9 * 16.

Tags

CCSS.7.RP.A.2A

Front

Are the fractions 11/3 and 33/9 proportional?

Back

Yes, because 11 * 9 = 3 * 33.

Tags

CCSS.7.RP.A.2A

Front

Are the fractions 5/6 and 60/50 proportional?

Back

Yes, because 5 * 50 = 6 * 60.

Tags

CCSS.7.RP.A.2A

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one fraction by the denominator of the other and comparing the results.

Tags

CCSS.4.NF.A.2

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.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a fraction?

Back

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

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B