Yes, 2/3 is greater than 1/2
There are infinitely many such numbers. Among them is 0.26
Yes 5/8 is greater than 1/2 which is made up of only 4/8
No
a whole
15
2/3 = 66.67%
1half+1half 3quarters+1quarter
1/23 = 0.0435
2/3 is the simplest form.
4
150%
179