Calculation: (7/8)+(4/7)+(5/8).
计算：(7/8)+(4/7)+(5/8)．
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">(7/8) + (4/7) + (5/8)</gadget>
<output>29/14 = around 2.071429</output>

<result>29/14 = around 2.071429</result>