Li Ming is a fat kid. After three months of exercise, his weight has dropped by 15 kilograms, which is lighter than before (1/5). How many kilograms does he weigh now?
李明是个胖小孩，经过三个月的锻炼，他的体重下降了15千克，比之前轻了(1/5)．他现在的体重是多少千克？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">15 / (1/5)</gadget>
<output>75</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">75 * (4/5)</gadget>
<output>60</output>

<result>60</result>