Drink a glass of milk first (1/5) and fill up with water; then drink (1/5) and fill up with water; then drink (1/5) and fill up with water. What fraction of water is milk?
一杯牛奶先喝去(1/5)又加满水；再喝去(1/5)又加满水；再喝去(1/5)又加满水．问牛奶是水的几分之几？
<gadget id="calculator">125 - 76</gadget>
<output>49</output>

<gadget id="calculator">76 / 49</gadget>
<output>76/49 = around 1.55102</output>

<result>76/49 = around 1.55102</result>