The number A is 49, which is more than the number B (1/7), what is the number B?
甲数是49，比乙数多(1/7)，乙数是多少．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 + (1/7)</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">49 / (8/7)</gadget>
<output>343/8 = around 42.875</output>

<result>343/8 = around 42.875</result>