(3/4+1/6)*3+(5/6-1/2) : 2/9= 4 1/6
3/4+1/6=9/12+2/12=11/12
11/12*3=33/12=2 8/12= 2 2/3
5/6-1/2=5/6-3/6=2/6=1/3
1/3: 2/9=1*9/3*2 = 1 1/2
2 2/3+1 1/2=2 4/6+1 3/6= 3 7/6= 4 1/6
( 1 целая 1/5+2 целых 3/10) :1/2+(6 целых 3/4-2 целых 2/3) : 1 целая 1/6=10 1/2
1 целая 1/5+2 целых 3/10=1 2/10 + 2 3/10 = 3 5/10= 3 1/2
3 1/2 :1/2= 7/2 :1/2=7*2/2*1=7
6 целых 3/4-2 целых 2/3=6 9/12 - 2 8/12=4 1/12
4 1/12 : 1 целая 1/6=49/12 : 7/6=49*6/12*7=7/2=3 1/2
7+3 1/2=10 1/2