Ratios and Percents

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

What does it mean for a part to be shaded in a grid?

Back

It indicates the proportion of the total area that is covered or filled.

Front

How do you find the shaded area in a grid?

Back

Count the number of shaded squares and divide by the total number of squares in the grid.

Front

What is the formula for finding a percentage of a number?

Back

The formula is (part/whole) x 100.

Front

How do you express a ratio in simplest form?

Back

By dividing both parts of the ratio by their GCD.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first number is the numerator and the second is the denominator.

Front

How do you compare two ratios?

Back

Convert both ratios to fractions and find a common denominator or cross-multiply.