Rational Number Operations

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and the denominator are integers, and the denominator is not zero.

Front

What does it mean to add rational numbers?

Back

Adding rational numbers involves finding a common denominator and then adding the numerators.

Front

What does it mean to subtract rational numbers?

Back

Subtracting rational numbers involves finding a common denominator and then subtracting the numerators.

Front

What is the result of -2 ⅙ - (-1 ¾)?

Back

-5/12

Front

What is the result of -3 ¼ + ½?

Back

-2 ¾

Front

How do you find the total change in position when moving up and down?

Back

Add the upward movements and subtract the downward movements to find the net change.

Front

If an elevator goes up 15 floors, down 9 floors, up 11 floors, and down 19 floors, what is the ending location?

Back

Down 2 floors

Front

What is the total change in position for a football team that lost 9 yards on each of three consecutive plays?

Back

-27 yards

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.