1 2 4 3 - порядок действий
(6 1/4-4 1/8)*4+3 1/3:2 1/2 =10 7/12
6 1/4 - 4 1/8 = (6-4)+(1/4+1/8)=2+ (2+1 /8)=2 3/8
2 3/8*4 =19/8 * 4= 19*4/8=76/8=9 1/4
3 1/3 : 2 1/2= 10/3:5/2=1 1/3
9 1/4+1 1/3=(9+1)+(1/4+1/3)=10+7/12= 10 7/12
(2 4/9 + 1 1/6)*1 4/5 - 3 1/9:2 1/3=
2 4/9+1 1/6= (2+1)+(4/9+1/6)= 3+(6+3/18)=3 1/3
3 1/3*1 4/5= 10/3*9/5=6
3 1/9 :2 1/3=28/9:7/3= 28*3/9*7=1 1/3
6-1 1/3= 5 6/6 - 1 1/3= (5-1)+(6/6-1/3)=4 +2/3=4 2/3