Final answer:
To make packets of 1/2 kg each from 25/3 kg of coffee, we can make 16 2/3 packets and have 7/3 kg leftover.
Step-by-step explanation:
To find the number of packets of 1/2 kg each that can be made from 25/3 kg of coffee, we need to divide the total weight of coffee by the weight of each packet. In this case, we divide 25/3 kg by 1/2 kg:
25/3 ÷ 1/2 = 25/3 × 2/1 = 50/3 = 162/3 packets
So, we can make 162/3 packets of coffee. To find the amount leftover, we need to subtract the total weight of the packets from the total weight of the coffee:
25/3 kg - 162/3 × 1/2 kg = 25/3 kg - 33/2 kg = 25/3 kg - 99/6 kg = 25/3 kg - 33/6 kg = (25 - 11)/6 kg = 14/6 kg = 7/3 kg leftover.