十八分之一除以三十九分之二十二乘九十一分之四十五乘十五分之八等于多少

1/18/(22/39)45/918/15
=8/1839/2245/151/91
=4/939/223/91
=3/94/2239/91
=1/32/1139/91
=39/32/111/91
=132/111/91
=13/912/11
=1/72/11
=2/77