Feifei spent (3/4) hours on homework and (5/6) hours on crafting. How many hours did he spend in total?
飞飞写作业用了(3/4)小时，制作手工用了(5/6)小时，他一共用了多少小时？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(3/4) + (5/6)</gadget>
<output>19/12 = around 1.583333</output>

<result>19/12 = around 1.583333</result>