3 kilograms 350 grams = how many kilograms.
3千克350克=多少千克．
<gadget id="calculator">350 / 1_000</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(7/20) + 3</gadget>
<output>67/20 = around 3.35</output>

<result>67/20 = around 3.35</result>