A glass of sugar water contains 15 grams of sugar and 45 grams of water. What is the sugar content in this glass of sugar water?
一杯糖水中含糖15克，含水45克，这杯糖水中糖的含量是多少．
<gadget id="calculator">15 + 45</gadget>
<output>60</output>

<gadget id="calculator">15 / 60</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/4) * 1</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>