Respuesta :

San Francisco -
[tex]20 \frac{3}{20} = \frac{403}{20} \\ 37 \frac{1}{5} \: \: = \frac{186}{5} [/tex]
[tex] \frac{403}{20} + \frac{186}{5} = \frac{1147}{20} = 57 \frac{7}{20} = 57.35 [/tex]
Estimated :
20 3/20=20
37 1/5=37
37+20=57