An empty bucket can be filled with 5 bowls of water or 6 cups of water, now pour 2 bowls of water and 2 cups of water into the empty bucket, how much will the water level rise to the height of the empty bucket.
空桶可装满5碗水或6杯水，现将2碗水和2杯水倒入空桶，水面上升到空桶高度的多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * 2</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(2/5) + (1/3)</gadget>
<output>11/15 = around 0.733333</output>

<result>11/15 = around 0.733333</result>