and B have two barrels of gasoline with a total of 149 liters. The (1/4) of A barrel is 3 liters less than the (1/3) of B barrel. How many liters of gasoline are there in A barrel? (equation)
甲、乙两桶汽油共149升，甲桶的(1/4)比乙桶的(1/3)少3升，甲桶有多少升汽油？(方程)
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 149</gadget>
<output>149/3 = around 49.666667</output>

<gadget id="calculator">(149/3) - 3</gadget>
<output>140/3 = around 46.666667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/3) + (1/4)</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(140/3) / (7/12)</gadget>
<output>80</output>

<result>80</result>