119-X=Y, given x:y=3:4, then x=how many.
119-X=Y，已知x：y=3：4，则x=多少．
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">1 + (4/3)</gadget>
<output>7/3 = around 2.333333</output>

<gadget id="calculator">119 / (7/3)</gadget>
<output>51</output>

<result>51</result>