Tính

Bài 1:

3/200-3/110-3/90-3/72-3/56-...-3/22

(1/5-12/37-23/65)-(42/65-49/37)-(1/30+1/42+1/56+...+1/110+1/132)

16/9-1/36-1/28-1/21-1/15-1/10-1/6-1/3-1