Converting 10lb 3oz to grams and/or kg

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I am struggling with this which should be simple. Can someone please explain this to me?

When I google all I find are calculators and I need to know how to do it by hand.

Thanks, Joel

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Specializes in ER.

every pound is 454g

plus 30gper ounce.

10lb=4540

3oz=90g

Answer 4630g or 4.63 kg

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I convert the ounces first-- because there are 16 oz in 1 lb, divide the 3 oz by 16. You get 0.19. add the answer to the 10 pounds to get 10.19 lbs. Then to get kg, divide that by 2.2. So 10.19 divided by 2.2 is 4.63 kg.

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