Add fraction 6 4/5 + 3 7/10 how do i add this fraction

The answer is 10 1/2.

First you need to convert 4/5 and 7/10 so the denominator is the same. 4/5=8/10, 7/10 stays the same.

Now we add= 6 8/10 +3 7/10 =9 15/10.
9 15/10=10 5/10=10 1/2.

Hope this helps and hope you have a great day and please make brainiest

Maybe the answer is 20mm. all i really did was just multiply, which is obvious.

The slope of the function is 0.5.