Question

!!!!!!!!!!!!!!Срочно!!!!!!!!!!!!! Даю 20 балов

Answer 1

1) 5,4 * (-3 1/3) = 54/10 * (-3 1/3) = 27/5 * (-10/3) = - (27 * 10)/(5 * 3) = - 18

2) 15,75 - 1 19/20 = 15,75 - 1,95 = 13,8

3) 13,8 + (-18) = -4,2

4) -4,2 : 2 4/5 = -4,2 : 2,8 = -42/28 = -6/4 = -3/2

5) -3/2 + 3 1/15 = -45/30 + 92/30 = 47/30 = 1 17/30