A is 160 cm tall and 20 cm taller than B. What is the formula for finding the percentage of A higher than B
甲身高160厘米，比乙高20厘米．求甲比乙高百分之几的算式是多少
<gadget id="calculator">160 - 20</gadget>
<output>140</output>

<gadget id="calculator">20 / 140</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>