9514 1404 393
Answer:
9/16
Explanation:
After the first exchange the amount in dollars is ...
£320 × $1.25/£1 = $400
After the spending, the amount in dollars is ...
$400 -100 = $300
After the second exchange, the amount in pounds is ...
$300 × £0.60/$1 = £180
This amount is 180/320 = 9/16 of the original amount.