There are 120 boys on the playground, and 20% more girls than boys. How many girls are there?
操场上男生有120人，女生比男生多20%，女生有多少人？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">120 * (6/5)</gadget>
<output>144</output>

<result>144</result>