Помогите плз все по действиям

6.25 = 6 1/4 2.8 = 2 4/5 0.5 = 1/2 6.1 = 6 1/10 1.4 = 1 2/5 2.1 = 2 1/10 1) 6 1/4 - 2 4/5 = 5 25/20 - 2 16/20 = 3 9/20 2) 3 9/20 * 20/23 = 69/20 * 20/23 = 69/23 = 3 3) 3 5/21 + 1 1/3 = 3 5/21 + 1 7/21 = 4 12/21 4) 4 12/21 * 7/16 = 96/21 * 7/16 = 6/3 = 2 5) 3/2 = 1.5 6) 14/15 + 1 2/5 = 14/15 + 21/15 = 35/15 = 2 1/3 7) 2 1/10 / 2 1/3 = 21/10 / 7/3 = 21/10 * 3/7 = 3/10 * 3 = 9/10 8) 6 1/10 + 9/10 = 61/10 + 9/10 = 70/10 = 7 9) 1/2 * 7 = 3.5 10) 3.5 + 1.5 = 5 Ответ: 5