Finite Math Examples

$[\begin{array}{c} 1 & 0 & 0 & \frac{1280}{90} \\ 0 & 1 & \frac{9}{11} & \frac{1600}{11} \\ 0 & 0 & 1 & \frac{1600}{9} \end{array}]$

Step 1

Factor $10$ out of $1280$ .

$[\begin{array}{c} 1 & 0 & 0 & \frac{10 (128)}{90} \\ 0 & 1 & \frac{9}{11} & \frac{1600}{11} \\ 0 & 0 & 1 & \frac{1600}{9} \end{array}]$

Step 2

Cancel the common factors.

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Step 2.1

Factor $10$ out of $90$ .

$[\begin{array}{c} 1 & 0 & 0 & \frac{10 \cdot 128}{10 \cdot 9} \\ 0 & 1 & \frac{9}{11} & \frac{1600}{11} \\ 0 & 0 & 1 & \frac{1600}{9} \end{array}]$

Step 2.2

Cancel the common factor.

$[\begin{array}{c} 1 & 0 & 0 & \frac{10 \cdot 128}{10 \cdot 9} \\ 0 & 1 & \frac{9}{11} & \frac{1600}{11} \\ 0 & 0 & 1 & \frac{1600}{9} \end{array}]$

Step 2.3

Rewrite the expression.

$[\begin{array}{c} 1 & 0 & 0 & \frac{128}{9} \\ 0 & 1 & \frac{9}{11} & \frac{1600}{11} \\ 0 & 0 & 1 & \frac{1600}{9} \end{array}]$