According to ①0.6+1.8=2.4, ②4.7/2.4≈1.96, ③1.96-0.54=1.42, what is the comprehensive formula?
根据①0.6+1.8=2.4，②4.7/2.4≈1.96，③1.96-0.54=1.42，列成综合算式是多少．
<gadget id="calculator">0.6 + 1.8</gadget>
<output>2.4</output>

<gadget id="calculator">4.7 / 2.4</gadget>
<output>1.958333</output>

<gadget id="calculator">1.958333 - 0.54</gadget>
<output>1.418333</output>

<result>1.418333</result>