Răspuns:
Explicație pas cu pas:
j) 3/4 : 5/6 : 7/12 = 3/4 x 6/5 : 7/12 = (3x6)/(4x5) x 12/7 =
= 18/20⁽² x 12/7 = 9/10 x 12/7 = (9x12)/(10x7) = 108/70⁽² = 54/35
k) 3 1/5 x 8/15 x 9/24⁽³ x 5/2 = (3x5+1)/5 x 8/15 x 3/8 x 5/2 =
= 16/5 x (8x3x5)/(15x8x2) = 16/5 x 1/2 = 16/10⁽² = 8/5
o) 555/222⁽¹¹¹ : 777/888⁽¹¹¹ : 444/111⁽¹¹¹ = 5/2 x 7/8 x 4/1 =
= (5x7x4) /(2x8) = 140/16⁽² = 70/8⁽² = 35/4
