Mart2000
Rozwiązane

oblicz a] 2/5+3/5 b] 1/3 + 1/6 c] 3/4* 5/7
help pls



Odpowiedź :

Marti4000

a) 2/5 + 3/5 = 5/5 = 1

b) 1/3 + 1/6 = 2/6 + 1/6 = 3/6 = 1/2

c) [tex]\frac{3}{4} * \frac{5}{7} = \frac{3*5}{4*7} = \frac{15}{28}[/tex]