8/9 : 8/27 = Вычислите дроби: 2/25 : 3/20 = 21/32 : 35/64 = 5/32 : 30 =Помогите плиз!!!!!

Question

8/9 : 8/27 = Вычислите дроби: 2/25 : 3/20 = 21/32 : 35/64 = 5/32 : 30 =Помогите плиз!!!!!

Answer 1

8/9 : 8/27 = 8/9 * 27/8 =3
 2/25 : 3/20 = 2/25*20/3=8/15
 21/32 : 35/64 =21/32*64/35=6/5=1 1/5
 5/32 : 30 = 5/32*1/30=1/192