46.95+69.120 / 84.312-611
=(22)6.(32)5+(2.3)9.23.3.5 / (23)4.312-(2.3)11
=212.310+29.39.23.3.5 / 212.312-211.311
=212.310+212.310.5 / 211.311.(2.3-1)
=212.310.(1+5) / 211.311.(6-1)
=212.310.6 / 211.311.5
=213.311 / 211.311.5
=22/5
=4/5
cái khúc 2^12.3^10+2^12.3^10.5/2^11.3^11.(2.3-1)ban tach sao