(2/5-6.6):(-5/4-4/3)=12/5=2.4
1)2/5-66/10=-31/5
2)-5.4-4.3=-31/12
3)-31.5:(-31/12)=12/5=2.4
1)4//10-66//10 = -62//10
2)-5//4-4//3=-(15//12+16//12)=-31//12
3)-62//10:-31//12=62*12//10*31=2,4
(2/5-6.6):(-5/4-4/3)=12/5=2.4
1)2/5-66/10=-31/5
2)-5.4-4.3=-31/12
3)-31.5:(-31/12)=12/5=2.4
1)4//10-66//10 = -62//10
2)-5//4-4//3=-(15//12+16//12)=-31//12
3)-62//10:-31//12=62*12//10*31=2,4