((())/(())) of (3/8) kilometers is (3/40) kilometers; how many grams (2/3) is 90 grams.
(3/8)千米的((())/(()))是(3/40)千米；多少克的(2/3)是90克．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">90 / (2/3)</gadget>
<output>135</output>

<result>135</result>