Both natural numbers A and B are two-digit numbers, and (2/3) of A number is equal to (4/7) of B number. What is the maximum sum of A and B?
甲、乙两个自然数都是两位数，甲数的(2/3)与乙数的(4/7)相等，甲、乙两数的和最大是？
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(4/7) / (2/3)</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">98 * (6/7)</gadget>
<output>84</output>

<gadget id="calculator">98 + 84</gadget>
<output>182</output>

<result>182</result>