The area of a parallelogram is (4/5)m**2, the base is (7/10)m, how many meters is the height?
一个平行四边形的面积是(4/5)m**2，底是(7/10)m，高是多少米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(4/5) / (7/10)</gadget>
<output>8/7 = around 1.142857</output>

<result>8/7 = around 1.142857</result>