Question

Прошууу помогите❤15 балов

Answer 1

1/3(2a-9)-1/2(5b+4)=2a/3-9/3-5b/2-4/2=2a/3-3-5b/2-2=(4a-18-15b-12)/6=(4a-15b-30)/6

(4*(9/2)-15*(4/15))/6=(18-4)/6=14/6=2 целых 2/6