The clothing store processes a batch of clothing twice, the first time makes all (1/5), and the second time makes 90 more pieces than the first time. How many pieces of clothing are in this batch?
服装店分两次加工一批服装，第一次做了全部的(1/5)，第二次比第一次多做90件．这批服装共多少件？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 / (3/5)</gadget>
<output>150</output>

<result>150</result>