√40 = √(4*10) = 2*√10
√(28/75) = √(4*7/(3*25)) = 2/5 * √(7/3)
√(242/225) =√(2*121/225) = 11/15 * √2
√(1.41/49) = √(90/49) = √(9*10/49) = 3/7 * √10
√(3.19/50) = √(169/50) = √(169/(2*25)) = 13/(5*√2)
√40 = √(4*10) = 2*√10
√(28/75) = √(4*7/(3*25)) = 2/5 * √(7/3)
√(242/225) =√(2*121/225) = 11/15 * √2
√(1.41/49) = √(90/49) = √(9*10/49) = 3/7 * √10
√(3.19/50) = √(169/50) = √(169/(2*25)) = 13/(5*√2)