39/9
195/45 = 39/9 or 41/3
Yes, it is reduced from 195/45 to 39/9
9/20
45/66 = 15/22
23/45 is in its lowest form
11/45 is in its simplest form.
10/45, divide top & bottom by 5...2/9
21 / 45 = 7 / 15 seven fifteenths 7 over 15
Both 20 & 45 are divisible by 5.Therefore we can simplify this to 4/9.
15 over 24 if you want it reduced, 90 over 144 if you want to make it larger.
Five twentieths
As you wrote it, the fraction would be 1777777778 over 10000000000 or reduced it would be 888888889 over 5000000000 However, if you meant 0.1777... where the 7's continue on forever, then the fraction would be 8 over 45.