Question

Qual o resultado de (2,5) X (8,94) ?

Answer 1

2,5 = 5/2  e 8,94 = 894/100 = 447/50
Então

2,5*8,94 = (5/2) * (447/50) = (5*447) / (2*50) = 2235/100 = 22,35.