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

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 result of adding -3/4 and 1/2?

Back

-3/4 + 1/2 = -1/4.

Front

How do you subtract rational numbers?

Back

To subtract rational numbers, convert them to a common denominator, then subtract the numerators.

Front

What is the result of subtracting 2/3 from 5/6?

Back

5/6 - 2/3 = 1/6.

Front

What is the product of two rational numbers?

Back

The product of two rational numbers is found by multiplying their numerators and denominators.

Front

What is the result of multiplying -2/5 by 3/4?

Back

-2/5 * 3/4 = -6/20 = -3/10.

Front

How do you divide rational numbers?

Back

To divide rational numbers, multiply by the reciprocal of the divisor.

Front

What is the result of dividing 1/2 by 3/4?

Back

1/2 ÷ 3/4 = 1/2 * 4/3 = 4/6 = 2/3.

Front

What does it mean for a number to be negative?

Back

A negative number is a number that is less than zero, often representing a loss or a deficit.