Сократить дроби 1)105/200 2)405/900 3)705/800 4)140/210
1) 105/200 = 21/40 = 0,525 2) 405/900 = 45/100 = 9/20 = 0,45 3) 705/800 = 141/160 = 0,88125 4) 140/210 = 20/30 = 2/3