Uncle Tian brought 900 yuan to buy fertilizer. He bought 12 bags of the same chemical fertilizer, leaving 60 yuan. How much does each bag of fertilizer cost?
田大伯带了900元买化肥．他买了同样的化肥12袋，剩下60元．每袋化肥的价钱是多少？
<gadget id="calculator">900 - 60</gadget>
<output>840</output>

<gadget id="calculator">840 / 12</gadget>
<output>70</output>

<result>70</result>