Answer:
The solution of 5.1(3) + 2.04 is 17.34
Solution:
From question, given that 5.1(3) + 2.04 --- eqn 1
Let us first multiply 5.1 and 3 in above equation. Multiplying 5.1 with 3 yields 15.3 .

So now equation 1 becomes,
15.3 + 2.04
Now add 15.3 with 2.04. The addition of 15.3 with 2.04 is shown in the figure attached below.
We get the solution as
15.3 + 2.04 = 17.34
Hence the solution of 5.1(3) + 2.04 is 17.34