Answer:
= 17/20
Explanation:
Subtract 1 2/5 kg from 2 1/4. So, first you have to find a common denominator which would be 20 so now it is 2 5/20 - 1 8/20 so now take the 2 5/20 and make it 1 25/20 - 1 8/20 which equals 17/20 kg
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