If (4/5) of A box of apples is equal to (2/3) of B box of apples, then A box of apples is equal to B box of apples.
甲箱苹果的(4/5)等于乙箱苹果的(2/3)，则甲箱苹果是乙箱苹果的多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(2/3) / (4/5)</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>