It is known that the sum of two numbers is 29.403, one addend is 26.75, find the other addend.
已知两数的和是29.403，一个加数是26.75，求另一个加数．
<gadget id="calculator">29.403 - 26.75</gadget>
<output>2.653</output>

<result>2.653</result>