Write 39 1/5 as a radical (i. e. as a root)

First write 39 1/5 as a proper fraction.

39 1/5 =196/5

A radical number should have a root symbol. To make this number has a root symbol and maintain its value, we have to square it. 

(196/5)² = 38,416/25

∴ 39 1/5 = (√38,416)/(√25)   or

              = √1,536.64

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