Xiaohong and Xiaofang went to Pizza Hut to eat pizza, Xiaohong ate a piece of pizza (3/8), Xiaofang ate a piece of pizza (1/2), Xiaohong and Xiaofang ate a fraction of the pizza How much?
小红和小芳去必胜客吃比萨，小红吃了一块比萨的(3/8)，小芳吃了一块比萨的(1/2)，小红与小芳一共吃了这块比萨的几分之几？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

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

<gadget id="calculator">(3/8) + (1/2)</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>