There are two ropes. The length of the first rope is 1.2 times that of the second rope. The first rope is 1.4 meters longer than the second rope. How many meters is the length of the first rope?
有两根绳子，第一根的长度是第二根的1.2倍，第一根比第二根长1.4米，第一根长多少米？
<gadget id="calculator">1.2 - 1</gadget>
<output>0.2</output>

<gadget id="calculator">1.4 / 0.2</gadget>
<output>7</output>

<gadget id="calculator">7 + 1.4</gadget>
<output>8.4</output>

<result>8.4</result>