Operations with Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is the result of multiplying a positive number by a negative number?

Back

The result is always a negative number.

Front

What is the result of adding two negative numbers?

Back

The result is always a negative number.

Front

What is the process to subtract fractions with different denominators?

Back

Find a common denominator, convert the fractions, then subtract the numerators.

Front

What is the simplified value of 12.4 x (-6.3)?

Back

-78.12

Front

What is 7.9 - 3.47?

Back

4.43

Front

How do you find the cost per item when given total cost and quantity?

Back

Divide the total cost by the quantity.

Front

What is the result of 8/9 - 6/7?

Back

2/63

Front

If a student has $78 and spends $12, how much is left?

Back

$66.

Front

What number can be combined with $66 to make zero?

Back

–66.