Can you help me with my homework??? It takes Evan 6 3/4 hours to mow 3 lawns. It takes him 2 1/3 hours to mow Mr.gals lawn and 1 3/4 hours to mow Ms.lee's lawn. How many hours did it take to mow the third lawn?

6 answers

6 9/12 - 2 4/12 - 1 9/12 = ?
6 3/4 - 2 1/3 - 1 3/4
3 1/4
I got a 0/2 on the question I was doing but the answer will help A LOT!
Thanks
I was so confused about this question but, you have to rename the fractions to get the answer.
its 4 u noobs