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------------------------------------------------ 12 lb 3 oz - 5 lb 7 oz

A. 7 lb 4 oz
B. 7 lb 12 oz
C. 6 lb 4 oz
D. 6 lb 12 oz

Answer :

Final answer:

To subtract the given weights, subtract the pounds and the ounces separately. Subtracting the pounds: 12lb - 5lb = 7lb. Subtracting the ounces: 3oz - 7oz = -4oz (borrowing 1 pound and converting it into ounces: 7lb - 1lb = 6lb, -4oz + 16oz = 12oz).

Explanation:

To subtract the given weights, we need to subtract the pounds and the ounces separately.

Subtracting the pounds: 12lb - 5lb = 7lb

Subtracting the ounces: 3oz - 7oz = -4oz (Since we cannot have a negative number of ounces, we need to borrow 1 pound from the pounds part and convert it into ounces: 7lb - 1lb = 6lb and adding the borrowed 16 ounces: -4oz + 16oz = 12oz)

Putting the results together, the final weight is 6 lb 12 oz. Therefore, the correct option is D. 6 lb 12 oz.

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