Final answer:
To find out how many kilograms of rice will remain, subtract the amount of rice used from the total amount of rice. In this case, 1 2/3 kg of rice is used out of the total 4 kg, so 2 1/3 kg of rice will remain.
Step-by-step explanation:
To find out how many kilograms of rice will remain, we need to subtract the amount of rice used from the total amount of rice. In this case, 1 2/3 kg of rice is used out of the total 4 kg, so we can set up the subtraction as: 4 kg - 1 2/3 kg. To subtract mixed numbers, we need to convert the mixed number to an improper fraction. 1 2/3 is equal to 5/3. So the subtraction becomes: 4 kg - 5/3 kg. To subtract fractions, we need a common denominator, which in this case is 3. So the subtraction becomes: 4 kg - (5/3 * 3/3) kg = 4 kg - 15/9 kg. Now, we can subtract the fractions: 4 kg - 15/9 kg = 4 kg - 1 6/9 kg = 4 kg - 1 2/3 kg = 2 1/3 kg.