A piece of rope 90 cm long, dots every 2 cm, and then dots every 3 cm. After finishing the rope in this way, and finally cutting the rope at the point, how many sections can be cut in total?
一段长90厘米的绳子，每隔2厘米点一个点，再隔3厘米点一个点．这样把绳子点完，最后在点地方将绳子剪断，共可剪几段？
<gadget id="calculator">90 / 2</gadget>
<output>45</output>

<gadget id="calculator">90 / 3</gadget>
<output>30</output>

<gadget id="calculator">90 / 6</gadget>
<output>15</output>

<gadget id="calculator">30 - 15</gadget>
<output>15</output>

<gadget id="calculator">45 + 15</gadget>
<output>60</output>

<result>60</result>