Question

как решить : 3/4+4/5+1/20

Answer 1

$frac{3}{4} + frac{4}{5} + frac{1}{20} = frac{3 times 5 + 4 times 4 + 1 times 1}{20} =$

$frac{15 + 16 + 1}{20} = frac{32}{20} = frac{8}{5} = 1 frac{3}{5}$