Adding 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 a positive and a negative rational number?

Back

To add a positive and a negative rational number, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the sum of ⅕ and -0.8?

Back

-⅗ or -0.6

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the process to add two negative rational numbers?

Back

Add their absolute values and keep the negative sign.

Front

What is the sum of -5⅗ and 9.7?

Back

4.1 or 4⅕ points

Front

How do you add multiple rational numbers?

Back

Add them sequentially, keeping track of their signs, or group them by their signs before adding.

Front

What is the sum of -0.15, -0.85, and 12.5?

Back

11.5

Front

How do you handle decimals when adding rational numbers?

Back

Align the decimal points and add as you would with whole numbers, carrying over as necessary.

Front

What is the sum of 10.9, -2⅗, and -7.4?

Back

0.9 or 9/10