How many grams are (2/15) grams more than (4/5) grams?
比(4/5)克多(2/15)克的是多少克．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(4/5) + (2/15)</gadget>
<output>14/15 = around 0.933333</output>

<result>14/15 = around 0.933333</result>