6(2/5) - 8(5/8)
= 12/5 - 40/8
= 12/5 - 20/4
= (124)/(54) - 20/4
= 48/20 - 20/4
= 48/20 - 100/20
= (48 - 100)/20
= -52/20
= -13/5
Ответ: -13/5
6(2/5) - 8(5/8)
= 12/5 - 40/8
= 12/5 - 20/4
= (124)/(54) - 20/4
= 48/20 - 20/4
= 48/20 - 100/20
= (48 - 100)/20
= -52/20
= -13/5
Ответ: -13/5