Lantian Garment Factory has adopted a new suit cutting technology, and now each suit uses 2.6 meters of cloth, which is 0.4 meters less than before. Originally made 520 sets of clothing fabrics, how many sets can be made now? (answer in two ways)
兰天服装厂采用了新的套裁剪技术，现在每套服装用布2.6米，比原来少用布料0.4米．原来做520套服装的布料，现在可以做多少套？(用两种方法解答)
<gadget id="calculator">2.6 + 0.4</gadget>
<output>3</output>

<gadget id="calculator">520 * 3</gadget>
<output>1_560</output>

<gadget id="calculator">1_560 / 2.6</gadget>
<output>600</output>

<result>600</result>