A liquid medicine is prepared according to the ratio of medicine and water 2:145. Now there are 9 grams of this medicine. How many grams of this medicine can be prepared in total?
一种药水，按药物和水2：145的比例配制而成，现在有此种药物9克，一共可配制成这种药水多少克？
<gadget id="calculator">2 + 145</gadget>
<output>147</output>

<gadget id="calculator">2 / 147</gadget>
<output>2/147 = around 0.013605</output>

<gadget id="calculator">9 / (2/147)</gadget>
<output>1_323/2 = around 661.5</output>

<result>1_323/2 = around 661.5</result>