In the tea picking labor, the fourth grade picked 21.4 kg of tea, 5.9 kg less than the sixth grade, and the fifth grade picked 2.7 kg less than the sixth grade. How many kilograms of tea are picked in the fifth grade?
采茶劳动中，四年级采茶21.4千克，比六年级少采5.9千克，五年级比六年级少采2.7千克．五年级采茶多少千克？
<gadget id="calculator">5.9 - 2.7</gadget>
<output>3.2</output>

<gadget id="calculator">21.4 + 3.2</gadget>
<output>24.6</output>

<result>24.6</result>