The number A is 60, which is 10% more than the number B, what is the formula to express the number B
甲数是60，比乙数多10%，表示乙数的式子是多少
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">60 / (11/10)</gadget>
<output>600/11 = around 54.545455</output>

<result>600/11 = around 54.545455</result>