The weight of an adult African male lion is (1/5) tons, and the weight of an adult male African buffalo is more than three times that of an adult African male lion (3/20) tons. The weight of an adult male African buffalo is How many tons?
一头成年非洲雄狮的体重是(1/5)吨，一头成年雄性非洲水牛的体重比一头成年非洲雄狮体童的3倍还多(3/20)吨，一头成年雄性非洲水牛的体重是多少吨？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 3</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">(3/5) + (3/20)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>