Question

como responder essa expressão

$\frac{5}{4} + \frac{4}{3} + \frac{3}{2} + \frac{2}{1} =$

Answer 1

$\frac{5}{4} + \frac{4}{3} + \frac{3}{2} + \frac{2}{1} = \frac{(3*5)+(4*4) + (6*3) + (12*2)}{3*4} = \frac{15 + 16 +18+24}{12} = \frac{73}{12}$

Answer 2

$\frac{5}{4} + \frac{4}{3} + \frac{3}{2} + \frac{2}{1}$
mmc(4,3,2,1) = 12
$\frac{5*3}{12} + \frac{4*4}{12} + \frac{6*3}{12} + \frac{2*12}{12}$
$\frac{15}{12} + \frac{16}{12} + \frac{18}{12} + \frac{24}{12} = \frac{73}{12}$