Master Li’s home used 42 degrees of electricity in April, which was 1/6 less in April than in March. How much electricity did Master Li’s house use in March?
李师傅家四月份用电42度，四月份比三月份节约(1/6)，李师傅家三月份用电多少度？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">42 / (5/6)</gadget>
<output>252/5 = around 50.4</output>

<result>252/5 = around 50.4</result>