First you can change the mixed fraction (1 3/4) into an improper fraction. First you add the whole number add the nominator and then multiply what you get by the denominator. So 1+3=4, 4x4=16. Then we have 16/4 which simplifies to 4. Now we can add everything else because they all have common denominators (2/1, 4/1, 10/1). So 2+4=6. 6+10= 16.
The final answer is 16 pounds.