(0,1224:1,2-2/5) *0,6-0,6 помогите

Question

(0,1224:1,2-2/5) *0,6-0,6
помогите

Answer 1

(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