If the number A is more than the number B (1/7), then the number B is less than the number A.
甲数比乙数多(1/7)，则乙数比甲数少多少．
<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">8 - 7</gadget>
<output>1</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>