The mass of Mercury is about (1/20) that of the Earth, and the mass of Venus is about (82/100) that of the Earth. How many Earths are the mass of Mercury and Venus equivalent to?
水星的质量约为地球的(1/20)，金星的质量约为地球的(82/100)，水星与金星的质量和相当于与多少个地球的质量？
<gadget id="calculator">1 / 20</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">82 / 100</gadget>
<output>41/50 = around 0.82</output>

<gadget id="calculator">(1/20) + (41/50)</gadget>
<output>87/100 = around 0.87</output>

<result>87/100 = around 0.87</result>