1. When converting between tons and kilograms, it is important to know that 1 ton is equal to 1000 kilograms.2. To convert 1 ton 20 kilograms to tons, we first divide the additional 20 kilograms by 1000 to find the equivalent in tons, which is 0.02 tons.3. Adding this to the initial 1 ton, the total weight is 1.02 tons.4. To express 1.02 tons as a fraction, we convert the decimal part, 0.02, into a fraction. Since 0.02 is equivalent to 2/100 or 1/50, the fraction is 1 1/50 ton.