If a factory produces 200 machines in February, which is 1/4 more than in January, then how many machines were produced in January.
某厂二月份生产机器200台，比一月份多生产(1/4)，则一月份生产了多少台．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">200 / (5/4)</gadget>
<output>160</output>

<result>160</result>