What is the sum of (5/8) and the reciprocal of 4 (5/21).
(5/8)与4的倒数的和的(5/21)是多少．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(5/8) + (1/4)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">5 / 21</gadget>
<output>5/21 = around 0.238095</output>

<gadget id="calculator">(7/8) * (5/21)</gadget>
<output>5/24 = around 0.208333</output>

<result>5/24 = around 0.208333</result>