A group of donations and scholarships are distributed to schools A and B at a ratio of 5:7, how much less is school A than school B
一批捐资助学金按5：7分给甲、乙两所学校，则甲校比乙校少多少
<gadget id="calculator">7 - 5</gadget>
<output>2</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<result>2/7 = around 0.285714</result>