Master Wang has produced a batch of parts, 3/8 of the total has been produced, and there are still 45 parts that have not been produced. How many parts has Master Wang produced?
王师傅生产一批零件，已经生产了总数的(3/8)，还剩45个没有生产，王师傅已经生产了多少个零件？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">45 / (5/8)</gadget>
<output>72</output>

<gadget id="calculator">72 - 45</gadget>
<output>27</output>

<result>27</result>