2*2/3:4/9+1*17/18:7/9 распишите решение примера

2*2/3:4/9+1*17/18:7/9 = 4 3/14

1) 2*2/3= 1 1/3

2) 1 1/3 : 4/9 = 3

3) 1*17/18 = 17/18

4) 17/18 : 7/9 = 1 3/14

5) 3+1 3/14 = 4 3/14

2*2/3:4/9+1*17/18:7/9= 3 17/14

1) 2*2/3=4/3

2) 4/3 : 4/9=3

3)1*17/18=17/18

4)17/18 : 7/9= 17/14 

5)3 + 17/14 = 3 17/14