24 (7/8) is equal to 30% of a number, find this number. (column equation solution)
24的(7/8)与一个数的30%相等，求这个数．(列方程解答)
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">24 * (7/8)</gadget>
<output>21</output>

<gadget id="calculator">21 / 0.3</gadget>
<output>70</output>

<result>70</result>