Question

- 4 3/7 * 0, 375 : 7, 75 * (-0, 9) * 1 13/15 : (-3/5)во 2 степени
решение 6 класс

Answer 1

-4 3/7 * 0,375 : 7,75 * (-0,9) * 1 13/15 : (-3/5)^2 = 1

1) -4 3/7 * 0,375 = -31/7 * 3/8 = -93/56
2) -93/56 : 7,75 = -93/56 : 775/100 = -93/56 *100/775 = -(3*25)/(14*25) = -3/14
3) -3/14 * (-0,9) = -3/14 * (-9/10) = 27/140
4) 27/140 * 1 13/15 = 27/140 * 28/15 = (9*1)/(5*5) = 9/25
5) (-3/5)^2 = (-3/5) * (-3/5) = 9/25
6) 9/25 : 9/25 = 9/25 * 25/9 = (1*1)/(1*1) = 1