Question

( 5/6 - 7/8 - 1/12)*2 2/3 *1,05

Answer 1

Вот решение по действиям.

Answer 2

(20/24-21/24-2/24)*2/1*2/3*105/100=
=-3/24*2/1*2/3*105/100=-105/600=-21/120=-7/40