sqrt(4/25) = ± 2/5
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4 is the square root of 16 because 4x4=16. 5 is the square root of 25 because 5x5=25
√(16/81) = (√16)/(√81) = 4/9 → The two roots are 4/9 and -4/9
The square roots of 4 are -2 and 2.
The square root of fraction 20 over 25: = √20 ...√25 = √4(5) ......5 = 2√5 .....5 or 2 square root of 5 over 5
It is: 2/5