Question

найдите значение выражения:
1 1/2*(-1 1/2)*1 1/4*(-1 1/5)*1 1/6
дам 80 баллов пж помогите

Answer 1

3/2*(-3/2)*5/4*(-6/5)*7/6= (3*(-3)*5*(-6)*7)/ (2*2*4*5*6)= (3*(-3)*(-7))/(2*2*4)= 63/16= 3 15/16

Answer 2

(2 1/6 + 5 1/6 : 4 2/15) * 3/82 = 1/8

1) 5 1/6 : 4 2/15 = 31/6 : 62/15 = 31/6 * 15/62 = 1/2 * 5/2 = 5/4 = 1 1/4
2) 2 1/6 + 1 1/4 = 2 2/12 + 1 3/12 = 3 5/12
3) 3 5/12 * 3/82 = 41/12 * 3/82 = 1/4 * 1/2 = 1/8