Complex Fractions and Proportions - DOK1

Front

What is a complex fraction?

Back

A complex fraction is a fraction where the numerator, the denominator, or both contain fractions.

Front

How do you simplify a complex fraction?

Back

To simplify a complex fraction, multiply the numerator and the denominator by the least common denominator (LCD) of the fractions within.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Tags

CCSS.7.RP.A.2A

Front

How do you find a missing value in a proportional relationship?

Back

To find a missing value in a proportional relationship, set up a proportion equation and solve for the unknown.

Tags

CCSS.7.RP.A.2C

Front

If A is to B as C is to D, how can you express this relationship?

Back

This relationship can be expressed as A/B = C/D.

Front

What is the formula to calculate unit rate?

Back

The unit rate is calculated by dividing the quantity by the number of units, e.g., miles per minute.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a car travels 50 miles in 40 minutes, what is the unit rate in miles per minute?

Back

1.25 miles per minute.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does it mean for two quantities to be in direct proportion?

Back

Two quantities are in direct proportion if increasing one quantity results in a proportional increase in the other.

Front

What is the cross-multiplication method used for?

Back

Cross-multiplication is used to solve proportions by multiplying the numerator of one ratio by the denominator of the other.

Front

What is the value of y if 3/4 = y/12?

Back

y = 9.