The school has two experimental fields of sorghum and corn. The sorghum experimental fields accounted for (1/2) of the total number was less than 0.3 hectares, and the corn experimental fields accounted for (1/3) of the total number was more than 0.7 hectares. How many hectares are there in total for these two test fields?
学校有高粱、玉米两块试验田．高粱试验田占总数的(1/2)少0.3公顷，玉米试验田占总数的(1/3)多0.7公顷．求这两块试验田共有多少公顷？
<gadget id="calculator">0.7 - 0.3</gadget>
<output>0.4</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/2) + (1/3)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">0.4 / (1/6)</gadget>
<output>2.4</output>

<result>2.4</result>