Understanding Ratios & Fractions Review

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

How do you express a ratio?

Back

A ratio can be expressed in three ways: using a colon (e.g., 3:1), as a fraction (e.g., 3/1), or in words (e.g., '3 to 1').

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as a numerator (top number) over a denominator (bottom number).

Front

How do you convert a ratio to a fraction?

Back

To convert a ratio to a fraction, place the first quantity (part) as the numerator and the total of both quantities as the denominator.

Front

If the ratio of red to blue counters is 3:1, what fraction of the counters are blue?

Back

1/4

Front

If the ratio of purple to red sweets is 2:5, what fraction of the sweets are red?

Back

5/7

Front

In a box of sweets, if 7/10 are red, what is the ratio of red to purple sweets?

Back

7:3

Front

If the ratio of red counters to blue counters is 3:1, what fraction of the counters are red?

Back

3/4

Front

In a bunch of flowers, if 3/8 are daffodils, what is the ratio of daffodils to carnations?

Back

3:5

Front

What is the total of the parts in a ratio of 3:1?

Back

The total of the parts is 3 + 1 = 4.