Pour (1/8) of the oil in barrel A into barrel B, the two barrels have the same amount of oil, how much oil in barrel B is the amount of oil in barrel A
甲桶油的(1/8)倒入乙桶，两桶油同样多，原来乙桶油是甲桶油的多少
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8) - (1/8)</gadget>
<output>3/4 = around 0.75</output>

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