Пж решите пример (0.8+(-1/6))+(-2 1/30)

Question

Пж решите пример (0.8+(-1/6))+(-2 1/30)

Answer 1

(0.8+(-1.6))+(-21/30)= (-0.8)+(-21/30)=-8/10+(-21/30)=-24/30-21/30=-45/30=-3/2=-1.5

Comments

(0,8 + ( - 1/6 ))+(-2 1/30)=(8/10-1/6)-61/30= 19/30-61/30=-42/30=-1,4