If you plant trees on both sides of a newly built street, if you plant one tree every 5 meters, there will be 3 trees left in the end; if you plant one tree every 4 meters, there will be 37 trees left in the end. Both ends of the street are just planted with trees. How many meters is this street?
在一条新修的街道两旁栽树，若每隔5米栽一棵，到头还剩3棵；若每隔4米栽一棵，到头还缺37棵．两种栽法街道的两端都恰好栽上树，这条街道长多少米．
<gadget id="calculator">37 - 2</gadget>
<output>35</output>

<gadget id="calculator">2 + 3 + 35</gadget>
<output>40</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/2) - (2/5)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">40 / (1/10)</gadget>
<output>400</output>

<result>400</result>