Question

Susan used 9 5/8 kilowatts of electricity to power her house for 5 1/2 hours. on average how many kilowatts did Susan use per hour

Answer 1

First get the two denominator to 8. Second multiply the 8 by 9 then plus 5 to get 77 over 8. Thrid take 5 4/8 and do the same thing multiply 8 and 5 plus 4 to get 44 over 8 then subtract the two answer to get the final answer.