Multiplying rational numbers

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

To multiply two rational numbers, multiply their numerators together and their denominators together. The product is then simplified if possible.

The product of two negative numbers is a positive number.

The product of a positive number and a negative number is a negative number.

First, multiply -8 and -3 to get 24. Then, add -10 to get 14.

The result of multiplying (2.5)(-1.2) is -3.

The product of (-0.2)(-0.8) is 0.16.

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

The common denominator of 8 and 5 is 40.

-31/40 is already in its simplest form.