(11/15-1.9+5/18)*0.9+0.1 По действиям пж

Question

(11/15-1.9+5/18)*0.9+0.1
По действиям пж

Answer 1

=(11/15*6-19/10*9+5/18*5)*0.9+0.1=(66/90-171/90+25/90)*9/10+0.1= -80/90*9/10+0.1=8/10+0.1=0.8+0.1=0.9