8(целых) 4/15 - 6(целых) 8/15 + 7(целых) 14/15
= 8 - 6 + 7 + 4/15 - 8/15 + 14/15
= 9 + 10/15
= 9 + 2/3
= 9(целых) 2/3
8(целых) 4/15 - 6(целых) 8/15 + 7(целых) 14/15
= 8 - 6 + 7 + 4/15 - 8/15 + 14/15
= 9 + 10/15
= 9 + 2/3
= 9(целых) 2/3