East Village planted 21 hectares of trees last year, which is (7/8) of the tree planting area this year. How many hectares of trees will be planted this year?
东村去年植树21公顷，是今年植树面积的(7/8)．今年植树多少公顷？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">21 / (7/8)</gadget>
<output>24</output>

<result>24</result>