0.55×0.6+0.11×7=0.11×(5×0.6+7)=0.11×10=1.1
0.55×0.6+0.11×7=0.11×5×0.6+0.11×7=0.11×(5×0.6)+0.11×7=0.11×3+0.11×7=0.11×(3+7)=0.11×10=1.1
55/100x60/100+11/100x7=3300/10000+77/100=33/100+77/100=110/100=1.1