(2/3) of number A is equal to (3/4) of number B. It is known that the sum of the two numbers is 170. What is the difference between the two numbers?
甲数的(2/3)与乙数的(3/4)相等，已知两数的和是170，那么两数的差是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">170 * (3/4)</gadget>
<output>255/2 = around 127.5</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) + (3/4)</gadget>
<output>17/12 = around 1.416667</output>

<gadget id="calculator">(255/2) / (17/12)</gadget>
<output>90</output>

<gadget id="calculator">170 - 90</gadget>
<output>80</output>

<gadget id="calculator">90 - 80</gadget>
<output>10</output>

<result>10</result>