(4 6/7:(5/6+8/21)-2 5/13)×8 2/3

Question

(4 6/7:(5/6+8/21)-2 5/13)×8 2/3

Answer 1

(4 6/7:(5/6+8/21)-2 5/13)×8 2/3 1) 5/6*7+8/21*2=35/42+16/42=51/42=17/12 2)4 6/7:17/12=34/7:17/13=34*14/7/17=2*2/1*1=4/1 3) 4/1-2 5/13=4/1*13-31/13=52/13-31/13=21/13 4)21/13*8 2/3=21/13*26/3=21*26/13*3=7*2/1*1=14/1=14.. Ответ:14

Comments

аа