To find which is bigger it is easier to convert both numbers to the same sort of fractions, so...
2/10 is the same as 4/20
1/4 is the same as 5/20
As you can see 1/4 is a bigger number than 2/10
1/5 is the same as 2/10, so, yes, 3/10 is bigger than 1/5.
Yes by 1 over 20
They are both the same because 1/5 is equivalent to 2/10
1/2 is bigger than 1/3
No, 2 over 1 is 2 and 3 over 1 is 3, so 3 is bigger than 2.
1 over 2
1/2
7 over 10
5 over 8 is bigger (1/8 bigger)
2 and 1/2
No because 4/5 is bigger than 5/10 or 1/2 in its simplest form
12/15 is bigger than 4/10 or 4/5 is bigger than 2/5