Answer: It is an associative property of addition.
Step-by-step explanation:
Since we have given that
(4+6.1)+7=4+(6.1+7)
As we know that "Associative property":
\((a+b)+c=a+(b+c)\)
Associativity in addition means that adding three numbers and then change the order of numbers and then add it again, we will get the same answer.
So,
\((4+6.1)+7=10.1+7=17.1\\\\Similarly,\\\\4+(6.1+7)=4+13.1=17.1\)
Hence, it is an associative property of addition.
