The answer depends on the units for 3.25 and 8.7 and, since these are not specified, there can be no answer.
87 or 80+7=87.
87 ounces is 5 pounds and 7 ounces.
8 stone 5 pounds minus 7 stone 4 pounds is 1 st 1lb
6.8125 pounds.
Eight pounds minus four ounces is equal to 7 pounds and 12 ounces.
1.875 pounds or 1 pound and 14 ounces.
It is: 17/100
The difference between 11 pounds and 7 ounces and 7 pounds and 11 ounces is 60 ounces (1,700 grams).
7 foot 1 325 pounds
0.625 pounds or 10 ounces.
6 lbs. and 14 0z.
(8 pounds 6 oz) - (5 percent) = 7 pounds 15.3 oz