Xiao Ming spent (3/7) hours on Chinese for homework, which was (2/7) hours less than mathematics. How many hours did the two homeworks take?
小明做家庭作业，语文用了(3/7)小时，比数学少用了(2/7)小时，两项作业一共用了多少小时？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(3/7) + (2/7) + (3/7)</gadget>
<output>8/7 = around 1.142857</output>

<result>8/7 = around 1.142857</result>