# How can I divide two matrices together?

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For example, let A and B be 3x3 Matrices = What is A/B? How can I compute that?

For example, let A and B be 3x3 Matrices = What is A/B? How can I compute that?

##### 1 Answer

By computing the "divisor" matrix's inverse, then post-multiplying the "dividend" matrix by this inverse.

#### Explanation:

Strictly speaking, division of matrices is not possible. But we can get around that by remembering that division can also be thought of as "multiplication by an inverse".

For instance, if we wanted to "divide"

You can use Gauss-Jordan elimination on the matrix

#[(,,,|,1,0,0),(,B,,|,0,1,0),(,,,|,0,0,1)]#

Row-reducing

There are other ways, but this is one of the more common.

Once you have *post-multiply*

Hope this helps!