The car drives from place A to place B, driving the whole journey (3/10), and there is still 42 kilometers away from place B. How many kilometers are there between places A and B?
汽车从甲地开往乙地，行驶了全程的(3/10)，离乙地还有42千米，甲、乙两地相距多少千米？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (3/10)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">42 / (7/10)</gadget>
<output>60</output>

<result>60</result>