3/7 × (19/6) = 3/4 + 5/6 = 3/5 + 1/4 = 5/8 + 2/5 = 7/12 - 5/4 = 3/8 - 4/5 =

3/7 x (19/6) = 53/42
3/4 + 5/6 = 9/12 + 10/12 (itu kpk nya 12)
= 19/12
3/5 +1/4 = 12/20 + 5/20
= 17/20
5/8 + 2/5 = 25/40 + 16/20
= 41/40
sorry q jwb nya sampai situ aja.... gk sempat soal nya....