1 and 1 over 20
25/20 or 1 and 1/4
The sum of 4/5 and 6/20 = 1 1/10
1 13/20
3/5 + 1/4 = 17/20
1/4 + 7/10 = 19/20
15 OVER 20
0.85 or 17/20
the sum would be 1/4 + 3/5 = 5/20 + 12/20 = 17/20
16/20 + 6/20 + 17/20 = 39/20 = 1 and 19/20
Technically, 19 over 20 or 0.95
so the question 1/4+1/5 find the least common denominator of the two fractions. This is 20. Now 1/4=?/20 cross multiply and you get 5. Then so 1/5= 4/20 so 4/20+5/20=9/20