Calculation: 47+((1/2)+(1/45))*99-4.7.
计算：47+((1/2)+(1/45))*99-4.7．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 45</gadget>
<output>1/45 = around 0.022222</output>

<gadget id="calculator">(1/2) + (1/45)</gadget>
<output>47/90 = around 0.522222</output>

<gadget id="calculator">(47/90) * 99</gadget>
<output>517/10 = around 51.7</output>

<gadget id="calculator">(517/10) - 4.7</gadget>
<output>47</output>

<gadget id="calculator">47 + 47</gadget>
<output>94</output>

<result>94</result>