(0,1224÷1,2-2/5)×0,6-0,6 помогите пж срочно

Question

(0,1224÷1,2-2/5)×0,6-0,6 помогите пж срочно

Answer 1

(0,1224÷1,2-2/5)×0,6-0,6=(1224/10000×10/12-2/5)×0,6-0,6=
=(51/500-200/500)×0,6-0,6=-149/500×6/10-6/10=-894/5000-3000/5000=
=-3894/5000

Answer 2

(0.1224 / 1.2 - 2/5) * 0.6 - 0.6 = (0.102 - 0.4) * 0.6 - 0.6 = (- 0.298) * 0.6 - 0.6 =- 0.1788 - 0.6 = - 0.7788