Mr.Tuyen uses 3 1/8 tanks of gas in 5 weeks. The improper fraction version would be 25/8 if that is what you're looking for
7. if you have a fraction with the same denominator, to add them together you add the numerators and the keep the denominator the same. to subtract, you subtract the numerator and keep the denominator the same.
8. the whole number times the denominator and add the answer to the numerator. to subtract you so the same just subtract rather than add
I believe you used an incorrect word for the problem. It’s in the first line.
156.8 is the answer
Hope this helps!
Weekly compact: 18
Weekly standard: 25
Weekly full size: 36
Total weekly: 18 + 25 + 36 = 79
standard weekly as percent of total weekly:
25/79 * 100 = 31.6455...%
Answer: 32%