In a decimal subtraction equation, the difference is 51.3. If the minuend increases by 0.06 and the subtrahend decreases by 4.21, what is the difference now?
在一个小数减法算式中，差是51.3．如果被减数增加0.06，减数减少4.21，那么现在的差是多少．
<gadget id="calculator">4.21 + 0.06</gadget>
<output>4.27</output>

<gadget id="calculator">51.3 + 4.27</gadget>
<output>55.57</output>

<result>55.57</result>