4.2 & 4.4 Retake Add Subtract 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

How do you add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Front

What is the process for subtracting rational numbers?

Back

To subtract rational numbers, find a common denominator, convert each fraction, and then subtract the numerators.

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Front

What is the temperature if it was 3°C and then 7.5°C lower?

Back

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Front

What is the first step in adding fractions?

Back

The first step is to find a common denominator.

Front

What does it mean for a number to be negative?

Back

A negative number is less than zero and represents a value that is opposite to a positive number.