Помогите пажалуйста упр 1287 2,4 ,

Упр. 1287 2) 6 4/25 + 2.81 - 1 3/4 = 24/25 + 281/100 - 7/4= 96/100 +281/100 - 175/100 = 202/100 = 101/50 = 2 1/50 = 2,02 4) 41,7 - 8 3/5 + 2 1/4 = 417/10 - 24/5 + 9/4 = 834/20 - 96/20 + 45/20 = 783/20 = 39 3/20 = 39,15 6) 58,75 - 21 9/10 + 4 8/25 = 5875/100 - 219/10 + 108/25 = 5875/100 - 2190/100 + 432/100 = 4117/100 = 41 17/100 = 41,17