The GCF is the greatest common factor. Find the factors for 45, 90, and 75; 45: 1, 3, 5, 9, 15, 45 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 75: 1, 3, 5, 15, 25, <span>75 Now find the biggest factor they have in all, which is 15. Hope this helps. </span>
If you convert the sloth it is 0.15 miles per hour If you convert the giant tortoise it is 0.17 miles per hour You can then compare the two and realize the giant tortoise is 0.02 miles per hour faster than the sloth