Complex sentence: Each daily ration consisted of six 12 oz. cans (three M-Units and three B-units) and an accessory pack, while an individual meal consisted of one M-Unit and one B-Unit.
Split into simpler sentences: Each daily ration consisted of six 12 oz. cans (three M-Units and three B-units) and an accessory pack. A meal consisted of one M-Unit and one B-Unit.