To calculate the sum:
0.436 + 0.9097 + 5 + 8.1
First, let's add the whole numbers and then the decimal numbers separately:
Whole numbers: 5 + 8 = 13
Decimal numbers: 0.436 + 0.9097 = 1.3457
Now, combine the results: 13 + 1.3457 = 14.3457
So, the total sum is 14.3457.