Simplify

1/3 (21m + 27)

My answer is 7m + 9

correct!

To simplify the expression 1/3(21m + 27), you can distribute the 1/3 to both terms inside the parentheses.

First, multiply 1/3 with 21m:
1/3 * 21m = 7m

Next, multiply 1/3 with 27:
1/3 * 27 = 9

Now, the expression becomes 7m + 9. Therefore, your answer is indeed 7m + 9.