Rahzel wants to determine how much gasoline he and his wife use in a month.He calculated that he used 78 1/3 gallons of gas last month. Rahzel's wife used 41 3/8 gallons of gas last month. How much total gas did Rahzel and his wife use last month.Round your answer to the nearest hundredth. ( use a calculator to convert the fractions into decimals before calculating the sum or difference).