It is known that the product of two factors is (5/8), one of the factors is (5/7), and what is the other factor.
已知两个因数的积是(5/8)，其中一个因数是(5/7)，另一个因数是多少．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/8) / (5/7)</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>