25% of the number A is equal to 30% of the number B, the number A is 120, what is the number B.
甲数的25%与乙数的30%相等，甲数是120，乙数是多少．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(1/4) / (3/10)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">120 * (5/6)</gadget>
<output>100</output>

<result>100</result>