A: B=5:8, how much more B than A
甲：乙=5：8，乙比甲多多少
<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(3/5) * 1</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>