Question

dumitru a cumparat 1 doime kg de salam1 patrime kg de cascaval si 1 intreg si 3 cincimi kg de legumecite kg de produse a cumparat dumitru?

Answer 1

1 doime kg = 1/2 kg salam
1 si 3/5 kg = 8/5 kg legume
1 patrime kg = 1/4 kg cascaval
1/2 + 8/5 + 1/4 = 10/20 + 32/20 + 5/20 = 47/20 = 2,35 kg a cumparat dumitru

Answer 2

$\frac{1}{2}+ \frac{1}{4}+1 \frac{3}{5}=? \\ \\ 1\frac{3}{5} = \frac{1*5+3}{5} = \frac{8}{5} \\ \\ \frac{1}{2}+ \frac{1}{4}+\frac{8}{5}= \frac{10}{20}+ \frac{5}{20}+ \frac{8*4}{20} = \frac{10+5+32}{20}= \\ \\ = \frac{47}{20}=2\frac{7}{20}=2,35 kg$