Драаасте. Помогите пожалуйста 1) 4,2:6-3·0,3 _______________________ 7,5:0,5 2) ((7,8:0,3-3³)+3,1):0,7
1) 4.2:6-3.1/3*0.3 0.7-1 -0.3 3 1 ___________ =_____ =____=-___ =-__; 7.5:0.5 15 15 150 50 2) ((7.8:0.3-3^3)+3.1)/0.7=(26-3^3+3.1)/0.7=260/7-3^3/0.7+31/7=37.1/7-3^3/0.7+4.3/7=41.1/7-3^3/0.7=41.1/7-270/7=18/7=2.4/7;