Answer :
To add these Two weights together, you first need to convert the pounds and ounces into a single unit.
4lbs 5oz =( 4 * 16) + 5=69 oz
3lbs 12oz = (3 * 16) + 12=48+12=60oz
69oz+ 60oz=129oz
Answer is:129 oz
4lbs 5oz =( 4 * 16) + 5=69 oz
3lbs 12oz = (3 * 16) + 12=48+12=60oz
69oz+ 60oz=129oz
Answer is:129 oz