Naughty misread the decimal point of the minuend when calculating a number minus 5.6. The calculated result is 7.91, which is 121.59 less than the correct result. What is the original minuend?
淘气在计算一个数减去5.6这道计算题时，看错了被减数的小数点，计算出来的结果是7.91，与正确的结果相比少了121.59，原来的被减数是多少．
<gadget id="calculator">7.91 + 121.59</gadget>
<output>129.5</output>

<gadget id="calculator">129.5 + 5.6</gadget>
<output>135.1</output>

<result>135.1</result>