1 lb = 16 oz 2 lb = 32 oz 3 lb = 48 oz 6 lb = 96 oz
86 oz = 5 lb 6 oz (86/16 = 5 remainder 6)
[ 11 lb + 12 oz ] + [ 6 lb + 6 oz ] =[ 11 lb + 6 lb ] + [ 12 oz + 6 oz ] =[ 17 lb ] + [ 18 oz ] =[ 17 lb ] + [ 1 lb + 2 oz ] =18 lb 2 oz
In the Avoidupoids system, 1 lb is 16 oz, so:6 lb. + 6 oz. = 6 lb * 16 oz./lb. + 6 oz.= 96 oz. + 6 oz.= 102 oz.In the Troy system, 1 lb is 12 oz, so:6 lb. + 6 oz. = 6 lb * 12 oz./lb. + 6 oz.= 72 oz. + 6 oz.= 74 oz.Don't worry about the Tower pound (12 Tower ounces), London pound (16 Troy ounces), or the merchant's pound (15 Tower ounces). They are all obsolete.
6 oz / 1 lb = 6 oz/16 oz = 6/16 = 0.3756 oz / 1 lb = 6 oz/16 oz = 6/16 = 0.3756 oz / 1 lb = 6 oz/16 oz = 6/16 = 0.3756 oz / 1 lb = 6 oz/16 oz = 6/16 = 0.375
4 lb 6 oz = 70 oz1 lb = 16 oz4 lb = 16 * 4 = 64 oz4 lb 6 oz = 64 oz + 6 oz = 70 oz
(105 lb 8 oz) - (98 lb 12 oz) = (104 lb + 1 lb 8 oz) - (98 lb 12 oz) = 6 lb + (1 lb 8 oz) - (0 lb 12 oz) = 6 lb + 24 oz - 12 oz = 6 lb + 12 oz
6 oz is 3/8 of a pound.
2.5 lb - 6 oz = -3.5
1lb = 16oz. 109oz.
That is 100 ounces
1 lb = 16 oz 14 lb = 13lb + 1 lb = 13lb + 16 oz → 14lb 6 oz - 13 lb 10 oz = (13lb + 16 oz) + 6 oz - (13 lb + 10 oz) = 13lb - 13 lb + 16 oz + 6 oz - 10 oz = 12 oz