(4/5)*38.3+1.7*(4/5).
(4/5)*38.3+1.7*(4/5)．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 38.3</gadget>
<output>30.64</output>

<gadget id="calculator">1.7 * (4/5)</gadget>
<output>1.36</output>

<gadget id="calculator">30.64 + 1.36</gadget>
<output>32</output>

<result>32</result>