Дроби

Упростите дробное выражение

((1/6+0.1+1/5)/((1/6+0.1-1/15) )/2.52)/(((0.5-1/3+0.25-1/5))/((0.25-1/6) )*7/13)

(1/6+0.1+1/5)=(1/6+1/10+1/5)=(5+3+6)/30=14/30=7/15

(1/6+0.1-1/15)=(1/6+1/10-1/15)=(5+3-2)/30=6/30=1/5

2.52=252/100=63/25

(1/6-1/3+1/4-1/5)=(10-20+15-12)/60=-7/60

(1/4-1/6)=(6-4)/24=2/24=1/12

7/15:1/5:63/25:(-7/60):1/12*7/13=7/15*5/1*25/63*(-60/7)*12/1*7/13=-2000/39
Ответ: -2000/39