The minuend is 150, the ratio of the subtrahend to the difference is 3:2, the subtrahend is 90, what is the difference.
被减数是150，减数与差的比是3：2，减数是90，差是多少．
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">150 * (2/5)</gadget>
<output>60</output>

<result>60</result>