Пример (-1,5)*на 7/15-7/15*на2,8=

Question

Пример (-1,5)*на 7/15-7/15*на2,8=

Answer 1

(-1/5)*7/15-7/15*2,8=7/15(-1,5-2,8)=7/15*(-4,3)=7/15*(-43/10)=
=-301/150=-2 1/150