3+3+3+12+5(15/16)+ 4(5/16) +4(5/16)

If you are doing this without a calculator, first add 3 + 3 + 3 + 12 = 21

Then, simplify the fractions:  5(15/16) = 75/16      (multiply the 5 times 15, but not times the denominator)

And:  4(5/16) = 20/16.

Add the fractions together:  75/16 + 20/16 + 20/16 =  (75 + 20 + 20)/16  =  115/16

Simplifying 115/16 =  7 3/16

The final answer is:  21 + 7 3/16  =  28 3/16

The result is: 28,1875