5 over 2
It is not clear how far the scope of the square root extends: (√25)/4 = (√(5²))/4 = 5/4 = 1¼ = 1.25 √(25/4) - √(5²/4²) = (√(5²)) / (√(4²)) = 5/2 = 2½ = 2.5 I suspect you meant the latter, as in the "square root of all of 25 over 4".
2/5 = 4/10 minus 1/10 is 3/10
-4
sqrt(4/25) = 2/5
8/5
10
IT IS 7 and 1/2
5/2 divided by 8/1 = 5/16
4/5 = 0.8
That's the same as 2/3 x 5/2 = 10/6 or 1 and 2/3
well, half of 40 is 20. 20 divided by 2 = 10 and 40 divided by 2 = 20 so now you have 10 over 20. then: 10 dived by 2 = 5 and 20 dived by 2 = 10 so now you have 5 over 10, and 5 is half of 10 so it is 1 over 2.
5*8 20*2 3*10+10 80 dived by 2
5 with remainder 4
5/4
2 ÷ 4/5 = 5/2 or 21/2
4/5+2/5=6/5