Question

Помогите пожалуйста ​

Answer 1

1) 5/6 + 2 1/2 = 5/6+5/2=10/3
2) 5 5/6 - 1 3/4= (5-1)+(5/6-3/4)=4+1/12=4 1/12
3)4 5/9 * 3 9/15= 41/9* 9/5= 41*1/5=41/5
4)2 4/8 : 1 7/9= 20/8 * 7/9=5/2*7/9 =35/18