Respuesta :

6.57, 6 5/6, 6.838, 137/20
137/20 is equal to 6 17/20 or 6.85. 
6 5/6 is equal to 6.8333. 
Least to greatest, they all are: 
6.57, 6 5/6, 6.838, 137/20 
Hope this helps!
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