Answer:
The fraction is 2/5 of one gold bar.
Step-by-step explanation:
The king's ship sank with 8 gold bars aboard. Captain Nemo helped the King to find them and the king paid Captain Nemo 4/5 of one bar for finding the gold.
Let one gold bar be g.
This means the king paid Captain Memo 4/5 × g = 4g/5
The captain gave 1/2 of his gold to charity. This means that Captain Memo gave 1/2 of his 4g/5 gold bar to charity.
This amount that Captain Memo gave for charity would be
1/2 × 4g/5 = 4g / 10 = 2g/5
The fraction of a bar that went for charity would be
This amount that Captain Memo gave for charity would be /one gold bar. It becomes
2g/5 ÷ g = 2g/5 × 1/g
The g cancels out. Therefore,
The fraction is 2/5 of one gold bar.