( 6-4 8|15):2,2= помогите

Question

( 6-4 8|15):2,2=

помогите

Answer 1

(6- 4 8/15) : 2,2= 2/3
1) 6- 4 8/15= 5 15/15 - 4 8/15= 1 7/15 = 22/15
2) 22/15 :2,2= 22/15: 22/10= 22/15 *10/22= 10/15=2/3