In a division formula, the sum of the dividend, the divisor and the quotient is 120. It is known that the quotient is 12, so what is the divisor?
在一道除法算式中，被除数，除数和商的和120，已知商是12，那么除数是多少．
<gadget id="calculator">120 - 12</gadget>
<output>108</output>

<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<gadget id="calculator">108 / 13</gadget>
<output>108/13 = around 8.307692</output>

<result>108/13 = around 8.307692</result>