What is the sum of 4 (1/7); 3 meters (1/8) is equal to 1 meter ((())/(())).
4个(1/7)的和是多少；3米的(1/8)等于1米的((())/(()))．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">4 * (1/7)</gadget>
<output>4/7 = around 0.571429</output>

<result>4/7 = around 0.571429</result>