2023 Math Unit 3 Review (Fractions and Probability)

Front

What is a fraction?

Back

A fraction represents a part of a whole, expressed as a numerator (top number) over a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

What does it mean to find a common factor?

Back

Finding a common factor means identifying a number that divides two or more numbers without leaving a remainder. For example, the common factors of 12 and 24 are 1, 2, 3, 4, 6, and 12.

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What is the probability of an event that is certain?

Back

The probability of a certain event is 1, meaning it will definitely happen.

Front

What is the probability of an impossible event?

Back

The probability of an impossible event is 0, meaning it cannot happen.

Front

How do you calculate the probability of an event?

Back

Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

What is a common multiple?

Back

A common multiple is a number that is a multiple of two or more numbers. For example, the common multiples of 3 and 4 include 12, 24, 36, etc.

Front

What does 'equally likely' mean in probability?

Back

'Equally likely' means that all outcomes of an event have the same chance of occurring.

Front

If a spinner has 4 equal sections, what is the probability of landing on one specific section?

Back

The probability of landing on one specific section is 1/4, since there are 4 equal sections.

Front

What is the difference between a proper fraction and an improper fraction?

Back

A proper fraction has a numerator smaller than the denominator (e.g., 1/2), while an improper fraction has a numerator larger than or equal to the denominator (e.g., 5/4).