All the students of Longhua Primary School participated in public welfare work. The third grade picked up 60 kilograms of white garbage, which was 1.5 times that of the second grade. How many kilograms did the second and third grades pick up altogether?
龙华小学全体同学参加公益劳动，三年级捡拾白色垃圾60千克，是二年级的1.5倍．二年级和三年级一共捡拾多少千克？
<gadget id="calculator">60 / 1.5</gadget>
<output>40</output>

<gadget id="calculator">40 + 60</gadget>
<output>100</output>

<result>100</result>